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Madagascar
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Detailed Mineral List:
Acanthite
Formula: Ag2S
Localities: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Andavakoera, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Betakilotra (Betankilotra), Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Actinolite
Formula: ☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2
Localities: Reported from at least 6 localities in this region.
Photo: Actinolite from Tsaratanàna District, Betsiboka Region, Mahajanga Province, Madagascar
Aegirine
Formula: NaFe3+Si2O6
Localities: Reported from at least 7 localities in this region.
Aenigmatite
Formula: Na2Fe2+5Ti(Si6O18)O2
Localities: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Aeschynite-(Y)
Formula: (Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Localities: Reported from at least 6 localities in this region.
Photo: © ARLIGUIE M. Aeschynite-(Y) from Tomboarivo pegmatite, Sahanivotry Manandona Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Albite
Formula: NaAlSi3O8
Localities: Reported from at least 45 localities in this region.
Photo: © Marco Barsanti. Albite from Itrongay, Mahasoa East Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar
Albite var: Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Locality: Anabohitsy, Southwestern Region, Tuléar Province (Toliara), Madagascar
Albite var: Cleavelandite
Localities: Reported from at least 10 localities in this region.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Locality: Ambatofotsy pegmatite, Mahavelona Commune, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Albite var: Pericline
Locality: Ankarafa, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
'Albite-Anorthite Series'
Localities: Reported from at least 18 localities in this region.
'Allanite'
Localities: Reported from at least 20 localities in this region.
Photo: © K.E.Larsen. Allanite from Marosoritse, Antanimora Commune, Ambovombe District, Androy Region, Tuléar Province, Madagascar
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Localities: Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © K.E.Larsen. Allanite-(Ce) from Estatoby, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 8 localities in this region.
Photo: © Arliguie M. Almandine from Tranomaro-Maromby area, Amboasary District, Anosy Region, Tuléar Province, Madagascar
'Almandine-Pyrope Series'
Localities: Soamiakatra, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ilakaka gem deposit, Ilakaka Commune, Ranohira District, Horombe Region, Fianarantsoa Province, Madagascar
'Almandine-Spessartine Series'
Localities: Reported from at least 10 localities in this region.
Photo: © Marco Barsanti. Almandine-Spessartine Series from Ialamitana Pegmatites, Sahanivotry Manandona Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Alunite
Formula: KAl3(SO4)2(OH)6
Locality: Mt. Vasianisy (Vosianisy), Ampanihy Centre Commune, Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
'Ambatoarinite'
Formula: Sr5(Ce,La,Di)10(CO3)17O3 ?
Locality: Ambatoarina, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Amblygonite
Formula: LiAl(PO4)F
Localities: Reported from at least 6 localities in this region.
Photo: © K.E.Larsen. Amblygonite from Ankiperatra No. 15, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Amesite
Formula: Mg2Al(AlSiO5)(OH)4
Locality: Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
'Ammonite var: Ammolite'
Locality: Ambato-Boeni District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Photo: © Roberto Bosi. Ammolite from Madagascar
Amphibole Supergroup
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Localities: Reported from at least 11 localities in this region.
Photo: © M Arliguie. Amphibole Supergroup from Bevaondrano pegmatite, Ikalamavony District, Ikalamavony Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Amphibole Supergroup var: Byssolite
Localities: Volonandrongo (Volonondrongo), Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatomalaza, Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Ambodiriana, Ambodiriana Commune, Toamasina II District (Tamatave) , Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Analcime
Formula: Na2(Al2Si4O12) · 2H2O
Localities: Reported from at least 13 localities in this region.
Anatase
Formula: TiO2
Localities: Reported from at least 12 localities in this region.
Photo: © Antonio Borrelli. Anatase from Mahaiza, Mahaiza Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Anatase var: Niobian Anatase
Formula: (Ti,Nb)O2
Locality: Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Niobian Anatase from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Andalusite
Formula: Al2(SiO4)O
Localities: Cap Andrahomana, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ilakaka gem deposit, Ilakaka Commune, Ranohira District, Horombe Region, Fianarantsoa Province, Madagascar
Laondany, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Andalusite var: Chiastolite
Locality: Ivato valley, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Andradite
Formula: Ca3Fe3+2(SiO4)3
Localities: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Kotovelo thorianite quarry, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Antetezambato Demantoid-Topazolite Mine, Antetezambato (Tetezambato), Maherivaratra Commune, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Andradite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Andradite var: Demantoid
Locality: Antetezambato Demantoid-Topazolite Mine, Antetezambato (Tetezambato), Maherivaratra Commune, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Mario Pauwels. Demantoid from Antetezambato Demantoid-Topazolite Mine, Antetezambato, Maherivaratra Commune, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Andradite var: Topazolite
Locality: Antetezambato Demantoid-Topazolite Mine, Antetezambato (Tetezambato), Maherivaratra Commune, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Chinellato Matteo. Topazolite from Antetezambato Demantoid-Topazolite Mine, Antetezambato, Maherivaratra Commune, Ambanja District, Diana Region, Antsiranana Province, Madagascar
'Andradite-Grossular Series'
Localities: Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Gem Scapolite Occurrence, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Photo: Andradite-Grossular Series from Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Anglesite
Formula: PbSO4
Localities: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Bobasatrana, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ankisatra, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Photo: © Pedro González. Anglesite from Bobasatrana, Ambilobe District, Diana Region, Antsiranana Province, Madagascar
Anhydrite
Formula: CaSO4
Localities: Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Mafilefy phlogopite mine, Andalantanosy Commune, Ambovombe District, Androy Region, Tuléar Province (Toliara), Madagascar
Benato Phlogopite mines, Benato-Toby Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Mandrovato phlogopite mine, Andalantanosy Commune, Ambovombe District, Androy Region, Tuléar Province (Toliara), Madagascar
Ankolitrazo thorianite deposit (Ankolitrazo-Andavabe), Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © Arliguie M. Anhydrite from Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province, Madagascar
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Locality: Ranomafana, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Locality: Sarodivotra, Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Anorthite
Formula: CaAl2Si2O8
Localities: Reported from at least 10 localities in this region.
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Localities: Vohimena deposit (Vohimena Nord), Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Soamiakatra, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Fonjay Massif, Morafenobe District, Melaky Region, Mahajanga Province (Majunga), Madagascar
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Localities: Reported from at least 13 localities in this region.
Photo: © Antonio Borrelli. Labradorite from Tuléar Province, Madagascar
'Apatite'
Localities: Reported from at least 69 localities in this region.
Photo: © Peter Kohorst. Apatite from Anosy Region, Tuléar Province, Madagascar
'Apophyllite'
Locality: Basalt Quarry, Ambariomiambana, Sambava District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Aragonite
Formula: CaCO3
Localities: Ambano, Ambano Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Mahatsinjo, Miarinarivo District, Itasy Region, Antananarivo Province, Madagascar
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Arsenic
Formula: As
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Arsenopyrite
Formula: FeAsS
Localities: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Nampoana quarry, Bezavona Massif, Taolañaro Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Esira area, Esira Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
'Asbestos'
Localities: Belasiray, Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Ibity massif, Ibity Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © ARLIGUIE M. Asbestos from Ibity massif, Ibity Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Ashanite'
Formula: (Nb,Ta,U,Fe,Mn)4O8
Locality: Ankarinarivo pegmatite, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Augelite
Formula: Al2(PO4)(OH)3
Localities: Tsiambenana quarry, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Col d'Itremo, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Augite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Localities: Mt Ivohitra, Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © Arliguie M. Augite from Mt Ivohitra, Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Augite var: Fassaite
Localities: Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Mafilefy phlogopite mine, Andalantanosy Commune, Ambovombe District, Androy Region, Tuléar Province (Toliara), Madagascar
Beampingaratra Massif, Manevy Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ambindandrakemba, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Locality: Besakoa Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Localities: Reported from at least 13 localities in this region.
Axinite-(Mn)
Formula: Ca2Mn2+Al2BSi4O15(OH)
Locality: Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Azurite
Formula: Cu3(CO3)2(OH)2
Localities: Reported from at least 11 localities in this region.
Baddeleyite
Formula: ZrO2
Localities: Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Baddeleyite from Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Barbosalite
Formula: Fe2+Fe3+2(PO4)2(OH)2
Localities: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bemokoto pegmatite (Bemakoto), Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
'Barkevikite'
Locality: Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Baryte
Formula: BaSO4
Localities: Reported from at least 22 localities in this region.
'Bastnäsite'
Localities: Reported from at least 6 localities in this region.
Photo: © Martins da Pedra. Bastnäsite from Befanamo pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Bastnäsite-(Ce)
Formula: (Ce,La)(CO3)F
Localities: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © A. Godelitsas. Bastnäsite-(Ce) from Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bastnäsite-(La)
Formula: (La,Ce)(CO3)F
Locality: Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Bastnäsite-(La) from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
'Bauxite'
Locality: Ankazobe's Tampoketsa, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Photo: © K.E.Larsen. Bauxite from Ankazobe's Tampoketsa, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
Locality: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Localities: Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Befarafara, Maromokotra Commune, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
'Befanamite'
Formula: Sc2Si2O7
Localities: Befanamo pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Bemoka pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Unnamed Pegmatite, Kelimaizina, Andranomamy Commune, Ambato-Boeni District, Boeny Region, Mahajanga Province (Majunga), Madagascar ? (more information)
Photo: © Arliguie M. Befanamite from Befanamo pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Behierite (TL)
Formula: (Ta5+,Nb5+)(BO4)
Type Locality: Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Habit: Octahedral crystals
Colour: Grayish-pink
Reference: Mrose, M.E. & Rose jr, J. (1961): Behierite, (Ta, Nb)BO4, a new mineral from Manjaka, Madagascar. Geol.Soc.Am, Abstracts 1961 Ann. Meetings, p 111A
Localities: Recorded from at least 6 other localities in this region.
Photo: © K.E.Larsen. Behierite from Manjaka, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Berlinite
Formula: AlPO4
Locality: Tsiambenana quarry, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bermanite
Formula: Mn2+Mn3+2(PO4)2(OH)2 · 4H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bertrandite
Formula: Be4(Si2O7)(OH)2
Localities: Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Unnamed pegmatite, Mandevontena, Masindray Commune, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 173 localities in this region.
Photo: © ARLIGUIE M. Beryl from Marijao pegmatite, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Localities: Reported from at least 11 localities in this region.
Photo: © J.Ralph. Aquamarine from Befotaka District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Beryl var: Emerald
Localities: Reported from at least 13 localities in this region.
Photo: © J.Ralph 2008. Emerald from Morafeno, South Zone, Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Beryl var: Heliodor
Localities: Zazafotsy Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Fianarantsoa Province, Madagascar
Vatofotsy, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Vorondolo pegmatite district, Antananarivo Province, Madagascar
Photo: © fabreminerals.com. Heliodor from Fianarantsoa Province, Madagascar
Beryl var: Morganite
Localities: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Mt Olotsingy, Vakinankaratra Region, Antananarivo Province, Madagascar
Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Farafatrana, Toamasina II District (Tamatave) , Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Tsarafara Sud (Ankadilava), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © Rob Lavinsky. Morganite from Madagascar
Beryl var: Vorobyevite
Localities: Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ankitsikitsika, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
'Biotite'
Localities: Reported from at least 59 localities in this region.
Photo: © Wolfgang Hampel. Biotite from Nosy Tanikely, Nosy Be District, Diana Region, Antsiranana Province, Madagascar
Bismite
Formula: Bi2O3
Localities: Reported from at least 9 localities in this region.
Bismuth
Formula: Bi
Localities: Reported from at least 14 localities in this region.
Bismuthinite
Formula: Bi2S3
Localities: Reported from at least 10 localities in this region.
Photo: © ARLIGUIE M. Bismuthinite from Vorondolo massif, Fandriana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bismutite
Formula: (BiO)2CO3
Localities: Reported from at least 25 localities in this region.
Photo: © K.E.Larsen. Bismutite from Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Bismutotantalite
Formula: Bi(Ta,Nb)O4
Locality: Analamisakana pegmatite (Analamitsakana), Tsaratanàna Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Bityite (TL)
Formula: LiCaAl2(AlBeSi2O10)(OH)2
Type Locality: Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Habit: pseudohexagonal barrelshaped aggregates with curved top (polysyntetic twins)up to 2 mm long; fine lamelles
Colour: white; whith-yellowish
Description: The typematerial of bityite was found in a pegmatite dike situated about 300 m N of the Maharitra workings (Behier (1960) Found on tourmaline or quartz
Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. pp 398-400 + planche 18 / Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, 78p.
Localities: Recorded from at least 7 other localities in this region.
Photo: © Knut Eldjarn. Bityite from Estatoby, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Böhmite
Formula: AlO(OH)
Locality: Vohibola phlogopite deposit (Vohibolo; Vohiboly), Behara Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Bornite
Formula: Cu5FeS4
Localities: Reported from at least 9 localities in this region.
Photo: © Wolfgang Hampel. Bornite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Braggite
Formula: (Pt,Pd,Ni)S
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Localities: Saronara Mn Mine, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambindavato, Sakoa area, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Britholite-(Ce)
Formula: Ca2(Ce,Ca)3(SiO4,PO4)3(OH,F)
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Britholite-(Ce) from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
'Britholite Group'
Colour: colourless
Description: Excact locality not known. Found together with pyrochlore, fluorite, quartz and fergusonite in an alkaline rock
Reference: Kieft, C & Burke, E.A.J. (1970): La britholite, un mineral nouveau pour Madagascar. Compte Rendu de la Semaine Géologique Madagascar, 101-103
Brochantite
Formula: Cu4(SO4)(OH)6
Localities: Matsaborivaky, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Pachoud Mine (Ambatovarahina Mine), Ambatofangehana, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Milanoa, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Brockite
Formula: (Ca,Th,Ce)PO4 · H2O
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © D.Preite. Brockite from Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Brookite
Formula: TiO2
Localities: River alluvials, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Fitampito brookite locality, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Mt Bekolosy, Manongarivo Massif, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © SpiriferMinerals.com. Brookite from Fitampito brookite locality, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
'Calamine'
Locality: Ampiadiambato, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Calcite
Formula: CaCO3
Localities: Reported from at least 63 localities in this region.
Photo: © fabreminerals.com. Calcite from Basalt Quarry, Ambariomiambana, Sambava District, Sava Region, Antsiranana Province, Madagascar
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Locality: Ambatoarina, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Localities: Antalio, Ankavandra Commune, Miandrivazo District, Menabe Region, Tuléar Province (Toliara), Madagascar
Folakara area, Beravina Commune, Morafenobe District, Melaky Region, Mahajanga Province (Majunga), Madagascar
Honko Valley, Beravina Commune, Morafenobe District, Melaky Region, Mahajanga Province (Majunga), Madagascar
Cassiterite
Formula: SnO2
Localities: Reported from at least 13 localities in this region.
Photo: © Wolfgang Hampel. Cassiterite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Catapleiite
Formula: Na2Zr(Si3O9) · 2H2O
Locality: Mt. Andevenanaomby, Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Celadonite
Formula: K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Localities: Basalt outcrops S of Lake Kinkony, Mitsinjo District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Bekiady, Soalala District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Celestine
Formula: SrSO4
Localities: Reported from at least 6 localities in this region.
Photo: © Rob Lavinsky. Celestine from Sakoany deposit, Katsepy Commune, Mitsinjo District, Boeny Region, Mahajanga Province, Madagascar
Cerianite-(Ce)
Formula: (Ce4+,Th)O2
Localities: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Cerite-(Ce)
Formula: (Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Cerite-(La)
Formula: (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3(HSiO4)4(OH)3
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Cerussite
Formula: PbCO3
Localities: Reported from at least 6 localities in this region.
'Chabazite'
Localities: Reported from at least 12 localities in this region.
Photo: © ARLIGUIE M. Chabazite from Benato Phlogopite mines, Benato-Toby Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar
Chalcanthite
Formula: CuSO4 · 5H2O
Localities: Ambohijanahary, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Besatrana Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Besakoa Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Pachoud Mine (Ambatovarahina Mine), Ambatofangehana, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Chalcocite
Formula: Cu2S
Localities: Reported from at least 10 localities in this region.
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 27 localities in this region.
Cheralite
Formula: (Ca,Ce)(Th,Ce)(PO4)2
Locality: Manivala (Sahambano corundum deposit), Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
'Chevkinite'
Formula: (Ce,Ca,Th)4(Fe,Mn)2(Ti,Fe)3[Si2O7]2O8
Localities: Ambonaivo Group, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Itrongay (Itrongahy), Mahasoa East Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Marovoalavo, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © K.E.Larsen. Chevkinite from Marovoalavo, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Chevkinite-(Ce)
Formula: (Ce,La,Ca,Th)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8
Localities: Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar (more information)
Photo: © Paul Bongaerts. Chevkinite-(Ce) from Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
'Chevkinite Group'
Localities: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Andalona River area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Isoanala Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Chevkinite occurrence, Ianakafy Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Androngovato, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Chiavennite
Formula: CaMnBe2Si5O13(OH)2 · 2H2O
Locality: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © Knut Eldjarn. Chiavennite from Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Chlorargyrite
Formula: AgCl
Locality: Ampiadiambato, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
'Chlorite Group'
Localities: Reported from at least 18 localities in this region.
'Chloropal (of Schneiderhöhn)'
Locality: Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: Chloropal (of Schneiderhöhn) from Anosy Region, Tuléar Province, Madagascar
Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 8 localities in this region.
Chrysoberyl
Formula: BeAl2O4
Localities: Reported from at least 21 localities in this region.
Photo: © fabreminerals.com. Chrysoberyl from Lac Alaotra Chrysoberyl Pegmatites, Lac Alaotra, Alaotra-Mangoro Region, Toamasina Province, Madagascar
Chrysoberyl var: Alexandrite
Formula: BeAl2O4
Locality: Ilakaka gem deposit, Ilakaka Commune, Ranohira District, Horombe Region, Fianarantsoa Province, Madagascar
Chrysoberyl var: Cymophane
Localities: Analadihirina, Miandrivazo District, Menabe Region, Tuléar Province (Toliara), Madagascar
Antanetibe, Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Marivolanitra, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O (x < 1)
Localities: Reported from at least 10 localities in this region.
'Chrysoprase'
Locality: Nickelville, Ambatondrazaka District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Localities: Reported from at least 9 localities in this region.
Churchite-(Y)
Formula: Y(PO4) · 2H2O
Locality: Ampasipoana pegmatite, Mahavelona Commune, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Clinobisvanite
Formula: Bi(VO4)
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Clinochlore
Formula: (Mg,Fe2+)5Al(AlSi3O10)(OH)8
Localities: Reported from at least 8 localities in this region.
Photo: © K.E.Larsen. Clinochlore from Ambohitandriana, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Clinochlore var: Delessite
Formula: (Mg,Fe,Fe,Al)(Si,Al)4O10(O,OH)8
Locality: Vangaindrano District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Clinochlore var: Leuchtenbergite
Localities: Beramy, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatomainty, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ampitsinjovana, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Andriamena complex, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Clinochlore var: Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Locality: Ampangabé pegmatite, Faratsiho District, Vakinankaratra Region, Antananarivo Province, Madagascar
Clinohumite
Formula: Mg9(SiO4)4F2
Localities: Anzahamazonono, Madagascar
Itrafo (Trafo), Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © . Clinohumite from Anzahamazonono, Madagascar
'Clinoptilolite'
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © OT. Ljostad. Clinoptilolite from Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
'Clinopyroxene Subgroup'
Localities: Vohimena hill, Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Ranopiso Mica Prospect, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Localities: Volonandrongo (Volonondrongo), Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Mosalahy area, Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Photo: © Arliguie M. Clinozoisite from Volonandrongo, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Clinozoisite var: Clinothulite
Locality: Volonandrongo (Volonondrongo), Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Cobaltite
Formula: CoAsS
Locality: Matsaborivaky, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
'Columbite'
Formula: (Fe,Mn)(Nb,Ta)2O6
Localities: Reported from at least 29 localities in this region.
Photo: © Rob Lavinsky. Columbite from Tsaramanga pegmatite, Mahaiza Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Columbite-(Fe)
Formula: FeNb2O6
Localities: Reported from at least 7 localities in this region.
Photo: Columbite-(Fe) from Marijao pegmatite, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Columbite-(Mg)
Formula: (Mg,Fe,Mn)(Nb,Ta)2O6
Locality: Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Columbite-(Mn)
Formula: (Mn,Fe)(Nb,Ta)2O6
Localities: Reported from at least 14 localities in this region.
Photo: © Chinellato Matteo. Columbite-(Mn) from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Columbite-(Mn)-Tantalite-(Mn) Series'
Localities: Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ilontsa (Ilotsa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Fiakarandava pegmatite, Sahatsiho-Ambohimanjaka Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © . Columbite-(Mn)-Tantalite-(Mn) Series from Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Columbite-Tantalite'
Localities: Reported from at least 40 localities in this region.
Photo: © Arliguie M. Columbite-Tantalite from Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Cookeite
Formula: (Al2Li)Al2(AlSi3O10)(OH)8
Localities: Reported from at least 8 localities in this region.
Photo: © K.E.Larsen. Cookeite from Tsarafara Sud, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Cooperite
Formula: PtS
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
'Copal'
Locality: Copalite localities, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Photo: © . Copal from Copalite localities, Sava Region, Antsiranana Province, Madagascar
Copper
Formula: Cu
Localities: Matsaborivaky, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Bekiady, Soalala District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Antalaha District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Photo: © Arliguie M. Copper from Bekiady, Soalala District, Boeny Region, Mahajanga Province, Madagascar
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Localities: Reported from at least 15 localities in this region.
Photo: © Michael C. Roarke. Cordierite from Tuléar Province, Madagascar
Corundum
Formula: Al2O3
Localities: Reported from at least 43 localities in this region.
Photo: © ARLIGUIE M. Corundum from Tranomaro-Maromby area, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Corundum var: Ruby
Formula: Al2O3
Localities: Reported from at least 13 localities in this region.
Photo: © Rob Lavinsky. Ruby from Zazafotsy Quarry, Zazafotsy Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Corundum var: Sapphire
Formula: Al2O3
Localities: Reported from at least 21 localities in this region.
Photo: © fabreminerals.com. Sapphire from Zazafotsy Quarry, Zazafotsy Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Cosalite
Formula: Pb2Bi2S5
Locality: Amparindravato, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Covellite
Formula: CuS
Localities: Reported from at least 7 localities in this region.
Crichtonite
Formula: (Sr,La,Ce,Y)(Ti,Fe3+,Mn)21O38
Locality: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Localities: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Cubanite
Formula: CuFe2S3
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Cummingtonite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Locality: Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Cuprite
Formula: Cu2O
Localities: Matsaborivaky, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Besakoa Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Bekiady, Soalala District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Cuprorhodsite
Formula: (Cu,Fe)Rh2S4
Locality: Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Curite
Formula: Pb3(UO2)8O8(OH)6 · 3H2O
Localities: Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Ambodibonara pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar ? (more information)
Adaboroa pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar ? (more information)
Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar ? (more information)
Cyrilovite
Formula: NaFe3+3(PO4)2(OH)4 · 2H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Danburite
Formula: CaB2Si2O8
Localities: Reported from at least 17 localities in this region.
Photo: © 2003 Thames Valley Minerals. Danburite from Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
'Davidite'
Locality: Ambonaivo Group, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Dewindtite
Formula: H2Pb3(UO2)2(PO4)4O4 · 12H2O
Localities: Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Diamond ?
Formula: C
Localities: Rienana River alluvials, Ikongo District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar ? (more information)
Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar (more information)
Diaspore
Formula: AlO(OH)
Localities: Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Matory, Nosy Varika District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Manivala (Sahambano corundum deposit), Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Digenite
Formula: Cu9S5
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 57 localities in this region.
Photo: © Marco Barsanti. Diopside from Itrongay, Mahasoa East Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar
Diopside var: Diallage
Locality: Tsingirifiry pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Dolomite
Formula: CaMg(CO3)2
Localities: Kianjavato, South Zone, Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Ambavanimigioky, Migioky, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Marosohy thorianite deposit (Marosohihy), Belafa area, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 12 localities in this region.
Photo: © Alessio Piccioni. Dravite from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Dravite-Schorl Series'
Locality: Sarodivotra, Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Dufrénite
Formula: Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Dumortierite
Formula: (Al,Fe3+)7(SiO4)3(BO3)O3
Localities: Reported from at least 11 localities in this region.
Photo: © Marco Barsanti. Dumortierite from Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Dyscrasite
Formula: Ag3Sb
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Eckermannite
Formula: NaNa2(Mg4Al}Si8O22(OH)2
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Edenite
Formula: {Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Localities: North Zone, Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Sakenite outcrops, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Sakeny corundum deposit, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Vohidava corundum deposit, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © 7/2005. Edenite from Vakinankaratra Region, Antananarivo Province, Madagascar
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 19 localities in this region.
Photo: © Arliguie M. Elbaite from Anjahamiary pegmatite, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
'Elbaite-Liddicoatite Series'
Localities: Anjahamiary pegmatite, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Sarodivotra, Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar ? (more information)
Photo: © Chinellato Matteo. Elbaite-Liddicoatite Series from Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Elbaite-Schorl Series'
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © Enrico Bonacina. Elbaite-Schorl Series from Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Enstatite
Formula: MgSiO3
Localities: Cap Andrahomana, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Voronkafotra (Vorokafotra; Vohidava mine), Ianabinda Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Enstatite var: Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Locality: Iankaroka, Ianabinda Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © Charles Calkins. Bronzite from Madagascar
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 21 localities in this region.
Photo: © Rob Lavinsky . Epidote from Ankarafa, Vohémar District, Sava Region, Antsiranana Province, Madagascar
Erlichmanite
Formula: OsS2
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Euclase
Formula: BeAl(SiO4)(OH)
Localities: Euclase locality, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Andilamena District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Photo: © Arliguie M. Euclase from Andilamena District, Alaotra-Mangoro Region, Toamasina Province, Madagascar
Eudialyte
Formula: Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Localities: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Mt. Andevenanaomby, Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ampangorinana, Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Eudialyte from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
Localities: Reported from at least 44 localities in this region.
Photo: © 2001 John H. Betts. Euxenite-(Y) from Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
'Evansite'
Formula: Al3(PO4)(OH)6 · 6H2O
Localities: Graphite bearing gneiss outcrop, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
'Faratsihite'
Locality: Roadcut Faratsiho, Faratsiho District, Vakinankaratra Region, Antananarivo Province, Madagascar
Fayalite
Formula: Fe2+2SiO4
Locality: Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
'Feldspar Group'
Localities: Reported from at least 16 localities in this region.
Photo: © KhyberMinerals.com. Feldspar Group from Vakinankaratra Region, Antananarivo Province, Madagascar
Ferberite
Formula: FeWO4
Locality: Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
'Fergusonite'
Localities: Reported from at least 14 localities in this region.
Photo: © Arliguie M. Fergusonite from Ambohimasina Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Fergusonite-(Y)
Formula: YNbO4
Localities: Reported from at least 6 localities in this region.
Photo: © Rob Lavinsky. Fergusonite-(Y) from Ambalabe pegmatite, Manapa pegmatite Field, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ferriallanite-(Ce)
Formula: {CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ferro-eckermannite
Formula: NaNa2(Fe2+,4Al)Si8O22(OH)2
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Fersmite
Formula: (Ca,Y)(Nb,Ta,Ti)2(O,OH)6
Localities: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sarodivotra, Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Feruvite ?
Formula: Ca(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
Locality: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Fluorapatite
Formula: Ca5(PO4)3F
Localities: Ankarafa, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Besosoa, Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Photo: © CCURTO2008. Fluorapatite from Ankarafa, Vohémar District, Sava Region, Antsiranana Province, Madagascar
Fluorapatite var: Mn-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Localities: Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Vohidahy, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ilontsa (Ilotsa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ambatorangotina pegmatite, Itremo commune, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © K.E.Larsen. Mn-bearing Fluorapatite from Ilontsa, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Fluorapophyllite-(K)
Formula: KCa4(Si8O20)(F,OH) · 8H2O
Locality: Basalt Quarry, Ambariomiambana, Sambava District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Fluor-cannilloite
Formula: {Ca}{Ca2}{Mg4Al}(Al3Si5O22)(F,OH)2
Locality: Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Fluor-elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Locality: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Fluorite
Formula: CaF2
Localities: Reported from at least 24 localities in this region.
Photo: © Antonio Borrelli. Fluorite from Amborompotsy, Amborompotsy Commune, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Fluor-liddicoatite (TL)
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Type Locality: Near Antsirabé, Vakinankaratra Region, Antananarivo Province, Madagascar
Reference: Dunn, P. J., Appleman, D.E. & Nelen, J.E. (1977): Liddicoatite, a new calcium end-member of the tourmaline group. American Mineralogist 62, 1121-1124; Henry, D., Novák, M., Hawthorne, F.C., Ertl, A., Dutrow, B.L., Uher, P. & Pezzotta, F. (2011): Nomenclature of the tourmaline supergroup minerals. Am. Mineral., 96, 895-913.
Localities: Recorded from at least 4 other localities in this region.
Photo: © E. Marini. Fluor-liddicoatite from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Fluorophlogopite
Formula: KMg3(AlSi3O10)(F,OH)2
Locality: Unnamed Fluorophlogopite occurrence, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © Wolfgang Hampel. Fluorophlogopite from Unnamed Fluorophlogopite occurrence, Maromby Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Forsterite
Formula: Mg2SiO4
Localities: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Itrafo (Trafo), Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Marosohy thorianite deposit (Marosohihy), Belafa area, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Gadolinite'
Locality: Andalantanosy Commune, Ambovombe District, Androy Region, Tuléar Province (Toliara), Madagascar
Gahnite
Formula: ZnAl2O4
Localities: Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Analamisakana pegmatite (Analamitsakana), Tsaratanàna Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Galena
Formula: PbS
Localities: Reported from at least 21 localities in this region.
Photo: © Wolfgang Hampel. Galena from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
'Garnet'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 32 localities in this region.
Photo: © Marco Barsanti. Garnet from Fianarantsoa Province, Madagascar
'Garnierite'
Localities: Valozoro lateritic nickel deposit, Ambohimahasoa District, Matsiatra Region, Fianarantsoa Province, Madagascar
Ambatovy, Moramanga District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Ampangabe-Jabo, Ambohidratrimo District, Analamanga Region, Antananarivo Province, Madagascar
Nickelville, Ambatondrazaka District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Photo: © Martins da Pedra. Garnierite from Valozoro lateritic nickel deposit, Ambohimahasoa District, Matsiatra Region, Fianarantsoa Province, Madagascar
Gedrite
Formula: ☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Locality: Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Gibbsite
Formula: Al(OH)3
Localities: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Manantenina, Manantenina Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Gibbsite from Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Gittinsite
Formula: CaZrSi2O7
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
Locality: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
'Gmelinite'
Localities: Bekiady, Soalala District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Bruel quarry, Toamasina II District (Tamatave) , Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Goethite
Formula: α-Fe3+O(OH)
Localities: Reported from at least 18 localities in this region.
Photo: © Wolfgang Hampel. Goethite from Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Gold
Formula: Au
Localities: Reported from at least 18 localities in this region.
Photo: © J.Ralph. Gold from Madagascar
Gold var: Electrum
Formula: (Au, Ag)
Locality: Andavakoera, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Goyazite
Formula: SrAl3(PO4)2(OH)5 · H2O
Localities: Tsiambenana quarry, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Col d'Itremo, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Graftonite
Formula: (Fe2+,Mn2+,Ca)3(PO4)2
Localities: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ampandramaika pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatoharanana pegmatite (Androfia), Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Bemokoto pegmatite (Bemakoto), Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Photo: © K.E.Larsen. Graftonite from Bemokoto pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Grandidierite (TL)
Formula: (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Type Locality: Cap Andrahomana, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Description: C. Mignot was not able to find any more grandidierite at the site in 1960 (Behier 1960)
Reference: Lacroix, A. (1902): Note préliminaire sur une nouvelle espèce minerale. Bulletin de la Société Francaise de Minéralogie 25: 85-86 ;
Localities: Recorded from at least 6 other localities in this region.
Photo: © Elmar Lackner. Grandidierite from Vohibola phlogopite deposit, Behara Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Graphite
Formula: C
Localities: Reported from at least 10 localities in this region.
Grossular
Formula: Ca3Al2(SiO4)3
Localities: Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Itrafo (Trafo), Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ambatondragaby skarn outcrops, Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar ? (more information)
Grossular var: Tsavorite
Localities: Reported from at least 7 localities in this region.
Grunerite
Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Locality: Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
'Guanglinite'
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
'Gummite'
Localities: Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Ambodibonara pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Befarafara, Maromokotra Commune, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 9 localities in this region.
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Localities: Ampanihy rhodonite deposit, Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Hambergite
Formula: Be2(BO3)(OH)
Localities: Reported from at least 12 localities in this region.
Photo: © . Hambergite from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Localities: Ampantaka, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ambano Pegmatite, Ambano Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Hedenbergite
Formula: CaFe2+Si2O6
Localities: Isoky phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Hematite
Formula: Fe2O3
Localities: Reported from at least 35 localities in this region.
Photo: © Spirifer Minerals. Hematite from Tetikanana, Ambatofinandrahana Commune, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Hematite var: Martite
Localities: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Miakanjovato pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ambatovy, Moramanga District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Photo: © Arliguie M. Martite from Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Hercynite
Formula: Fe2+Al2O4
Localities: Cap Andrahomana, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ampasimainty, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Hercynite var: Chromohercynite
Formula: Fe(Al,Cr)2O4
Locality: Ankararano, Farafangana District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Heterosite
Formula: (Fe3+,Mn3+)PO4
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
'Heulandite'
Localities: Reported from at least 11 localities in this region.
Heulandite-Ca
Formula: (Ca,Na)2-3Al3(Al,Si)2Si13O36 · 12H2O
Locality: Basalt Quarry, Ambariomiambana, Sambava District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Photo: Heulandite-Ca from Basalt Quarry, Ambariomiambana, Sambava District, Sava Region, Antsiranana Province, Madagascar
Hibonite (TL)
Formula: (Ca,Ce)Al12O19
Type Locality: Esiva eluvials, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Description: per correspondence with Knut Edvard: The TL produced just a few specimens in the year of discovery (also an eluvial locality ). When lacking exact locality data the Madagascar hibonite specimens are often erroneously labeled and sold as coming from Esiva, often being the only locality referred to in textbooks.
Reference: Delbos, L. (1955): Note sur le gisement d'un mineral nouveau " la hibonite" de' l'Androy Mandrareen" in Rapport Annuel du Service Geologique pour 1955, Tananarivo.143-144
Localities: Recorded from at least 11 other localities in this region.
Photo: Hibonite from Vohimena deposit, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Hollandite
Formula: Ba(Mn4+6Mn3+2)O16
Locality: Anketsaketsa (Ketsaketsa), Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © Rui Nunes 2006. Hollandite from Anketsaketsa, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Hollingworthite
Formula: (Rh,Pt,Pd)AsS
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
'Hornblende'
Localities: Reported from at least 7 localities in this region.
Hübnerite
Formula: MnWO4
Localities: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ilontsa (Ilotsa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Humite
Formula: (Mg,Fe2+)7(SiO4)3(F,OH)2
Localities: Ankerotsy thorianite deposit, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Andranomitrohy thorianite deposit, Belafa area, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ankazoabo sapphire deposit, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Mosalahy Marbles, Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Anzahamazonono, Madagascar ? (more information)
Photo: © Wolfgang Hampel. Humite from Ankazoabo sapphire deposit, Maromby Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
'Humite Group'
Localities: Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Antanimora Airstrip, Antanimora Commune, Ambovombe District, Androy Region, Tuléar Province (Toliara), Madagascar
Esira area, Esira Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Unnamed marble vein along RN 13, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Hureaulite
Formula: (Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
'Hydroxy-petscheckite'
Formula: UFe1/3(Nb,Ta)2O7(O,OH)
Locality: Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Locality: Besakoa Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
'Hypersthene'
Formula: (Mg,Fe)SiO3
Locality: Ankafotia, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 17 localities in this region.
Photo: © Wolfgang Hampel. Ilmenite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
'Ilmenorutile-Strüverite Series'
Locality: Ambatomalaza (Vohimasina), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Isoferroplatinum
Formula: Pt3Fe
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Ixiolite
Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Localities: Ilapa, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Betanimena pegmatite, Ambato-Boeni District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Vohidahy, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ixiolite var: Scandian Ixiolite (of von Knorring)
Formula: (Nb,Ta,Ti,Sc,Fe,Mn)4O8
Locality: Near Antsirabé, Vakinankaratra Region, Antananarivo Province, Madagascar
Ixiolite var: Wolframoixiolite
Formula: (Nb,W,Ta,Fe,Mn,Nb)2O4
Localities: Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ilontsa (Ilotsa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Localities: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Besakoa Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Ampandrana, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Tongobory, Tongobory Commune, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Jeremejevite
Formula: Al6(BO3)5(F,OH)3
Reference: Min Rec (2006) 37:361-470
Kaolinite
Formula: Al2(Si2O5)(OH)4
Localities: Analila pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Analabe Kaolinite Quarry (Somadex quarry), Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Mboro pegmatite, Brickaville District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Andilana pegmatite, Andilana North, Amboavory Commune, Amparafaravola District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Kashinite
Formula: (Ir,Rh)2S3
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Keithconnite
Formula: Pd20Te7
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
'K Feldspar'
Localities: Reported from at least 29 localities in this region.
Photo: © K.E.Larsen. K Feldspar from Marirana Pegmatites, Marirana, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Locality: Mandro, Betafo Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Kornerupine
Formula: Mg3Al6(Si,Al,B)5O21(OH)
Localities: Reported from at least 7 localities in this region.
Photo: © Caltech. Kornerupine from Betroka District, Anosy Region, Tuléar Province, Madagascar
Kyanite
Formula: Al2(SiO4)O
Localities: Reported from at least 13 localities in this region.
Photo: © ARLIGUIE M. Kyanite from Malakialina area, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
'Lanthanite' ?
Locality: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Localities: Reported from at least 9 localities in this region.
Photo: © Arliguie M. Laumontite from Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province, Madagascar
Laurite
Formula: RuS2
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Låvenite
Formula: (Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2
Localities: Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Manongarivo Massif, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Lazulite
Formula: (Mg,Fe2+)Al2(PO4)2(OH)2
Localities: Reported from at least 10 localities in this region.
Lepidocrocite
Formula: γ-Fe3+O(OH)
Localities: Ambatomanoina, Ambatomanoina Commune, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Antsakoanimanta deposit, Mangatabohangy Commune (Mangatobangy), Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar ? (more information)
Unspecified Amethyst sceptre locality, Tsitondroina Commune, Ikalamavony District, Ikalamavony Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar ? (more information)
Lepidolite
Localities: Reported from at least 31 localities in this region.
Photo: © Arliguie M. Lepidolite from Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Leucite
Formula: K(AlSi2O6)
Localities: Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Leucophosphite
Formula: KFe3+2(PO4)2(OH) · 2H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
'Leucoxene'
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Leucoxene from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Liandratite (TL)
Formula: U(Nb,Ta)2O8
Type Locality: Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Colour: yellow to brown
Description: As a 2mm thick crust on petscheckite
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
Photo: © 2008, JGW. Liandratite from Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province, Madagascar
'Liddicoatite'
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 15 localities in this region.
Photo: © Rob Lavinsky. Liddicoatite from Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Limonite'
Formula: FeO(OH) · nH2O
Localities: Reported from at least 10 localities in this region.
Linnaeite
Formula: Co2+Co3+2S4
Locality: Matsaborivaky, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Lipscombite
Formula: (Fe2+,Mn2+)Fe3+2(PO4)2(OH)2
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Lithiophilite
Formula: LiMn2+PO4
Localities: Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bemokoto pegmatite (Bemakoto), Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Lizardite var: Nickeloan Lizardite
Locality: Valozoro lateritic nickel deposit, Ambohimahasoa District, Matsiatra Region, Fianarantsoa Province, Madagascar
Londonite (TL)
Formula: (Cs,K,Rb)Al4Be4(B,Be)12O28
Type Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Habit: Dodecahedron {110}, tristetrahedron {211}, tetrahedron{111} and cube {100} (the last form is rare}
Colour: Milky to pale yellow crystals up to 1 cm
Description: Occurs in saccharoidal albite or in cavities
Reference: Simmons, W. B; Pezzotta, F; Falster, A.U & Webber, K. L. (2001): Londonite, a new mineral species: The Cs-dominant analogue of Rhodizite from the Antandrokomby granitic pegmatite, Madagascar. Canadian Mineralogist 39: 747-755/ MinRec 33:165]
Localities: Recorded from at least 5 other localities in this region.
Photo: © Rob Lavinsky. Londonite from Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Londonite-Rhodizite Series'
Localities: Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Camp Robin area, Fianarantsoa Province, Madagascar
Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © Collectors Edge. Londonite-Rhodizite Series from Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Maghemite
Formula: Fe3+2O3
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Maghemite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Magnesio-arfvedsonite
Formula: {Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2
Localities: Ambatoarina area, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatoarina, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Localities: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Magnesiotaaffeite-2N’2S
Formula: Mg3Al8BeO16
Locality: Antsofimbato pegmatites, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Magnesiotaaffeite-6N’3S
Formula: Mg2BeAl6O12
Localities: Sakenite outcrops, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Mosalahy Marbles, Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Magnesite
Formula: MgCO3
Localities: Ambindavato, Sakoa area, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Vohibory, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Ampangabe-Jabo, Ambohidratrimo District, Analamanga Region, Antananarivo Province, Madagascar
Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 37 localities in this region.
Photo: © Arliguie M. Magnetite from Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Magnetite var: Titaniferous Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
Locality: Ankaratra Mts, Antananarivo Province, Madagascar
Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 13 localities in this region.
Manandonite (TL)
Formula: LiAl4(BSi3O10)(OH)6
Type Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Habit: Flakes (sometimes with hexagonal contours)in fanlike globular aggregates
Colour: white
Description: white flakes with pearly lustre on the (001) cleavage.
Reference: Lacroix, A. (1912): Sur une nouvelle espèce minérale (manandonite) des pegmatites de Madagascar. Bulletin de la Société française de Minéralogie, 35, 223-226; Ranorosoa, N. , Fontan, F. & Fransolet, A-M. (1989): Rediscovery of manandonite in the Sahatany Valley, Madagascar. European Journal of Mineralogy 1, 633-638
Localities: Recorded from at least 2 other localities in this region.
Photo: © 2003 Thames Valley Minerals. Manandonite from Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Manganite
Formula: Mn3+O(OH)
Locality: Masokoamena, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Marcasite
Formula: FeS2
Localities: Vinaninkarena Uranium deposit, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ambano, Ambano Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Marcasite from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Massicot
Formula: PbO
Localities: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Meionite
Formula: Ca4Al6Si6O24CO3
Localities: Tsitondroina Commune, Ikalamavony District, Ikalamavony Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Gem Scapolite Occurrence, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Photo: © K.E.Larsen. Meionite from Gem Scapolite Occurrence, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
'Melilite'
Locality: Amparafaravola, Amparafaravola District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Localities: Anamakia, Massif d'Ambre, Antsiranana II District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Sakantaha, Antalaha District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Miargyrite
Formula: AgSbS2
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
'Mica Group'
Localities: Reported from at least 7 localities in this region.
Photo: © Grzegorz Słowik. Mica Group from Madagascar
Michenerite
Formula: PdBiTe
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Microcline
Formula: KAlSi3O8
Localities: Reported from at least 32 localities in this region.
Photo: © Rob Lavinsky. Microcline from Tsaratanàna Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province, Madagascar
Microcline var: Amazonite
Localities: Reported from at least 25 localities in this region.
Photo: © Antonio Borrelli. Amazonite from Imalo, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Microlite Group
Localities: Reported from at least 18 localities in this region.
Photo: © E.Endzelins. Microlite Group from Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Microlite Group var: Bismutomicrolite (of Hogarth 1977)
Locality: Ambalalehifotsy pegmatite, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Microlite Group var: Cesstibtantite
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © C. Stefano '08. Cesstibtantite from Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Microlite Group var: Uranmicrolite (of Hogarth 1977)
Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Milarite
Formula: K2Ca4Al2Be4Si24O60 · H2O
Locality: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Mirabilite
Formula: Na2SO4 · 10H2O
Locality: Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Mitridatite
Formula: Ca2Fe3+3(PO4)3O2 · 3H2O
Localities: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bemokoto pegmatite (Bemakoto), Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Molybdenite
Formula: MoS2
Localities: Reported from at least 16 localities in this region.
Photo: © Arliguie M. Molybdenite from Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province, Madagascar
'Monazite'
Localities: Reported from at least 51 localities in this region.
Photo: Monazite from Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Monazite-(Ce)
Formula: (Ce,La,Nd,Th)(PO4)
Localities: Reported from at least 12 localities in this region.
Photo: © CCURTO08. Monazite-(Ce) from Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Monazite-(La)
Formula: (La,Ce,Nd)(PO4)
Locality: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Localities: Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Fiakarandava pegmatite, Sahatsiho-Ambohimanjaka Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Mordenite
Formula: (Na2,Ca,K2)Al2Si10O24 · 7H2O
Locality: Basalt Quarry, Ambariomiambana, Sambava District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Mottramite
Formula: PbCu(VO4)(OH)
Locality: Androtsabo (Androtsabo South; Marovoalava), Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 57 localities in this region.
Photo: © ARLIGUIE M. Muscovite from Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Muscovite var: Damourite
Localities: Ampangabé pegmatite, Faratsiho District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sarondambo, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Muscovite var: Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
Localities: Reported from at least 6 localities in this region.
Photo: © Arliguie M. Fuchsite from Vavato massif, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Muscovite var: Gilbertite
Localities: Befanamo pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Ampangabé pegmatite, Faratsiho District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sarondambo, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Amparangoaika pegmatite, Dabolava Commune, Miandrivazo District, Menabe Region, Tuléar Province (Toliara), Madagascar
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Localities: Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Beomby, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Muscovite var: Sericite
Locality: Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Nacareniobsite-(Ce)
Formula: Na3Ca3(Ce,La,Nd)Nb(Si2O7)2OF3
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Natrojarosite
Formula: NaFe3(SO4)2(OH)6
Locality: Montagne des Francais, Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Arliguie M. photo and specimen
Localities: Recorded from at least 4 other localities in this region.
Photo: © Arliguie M. Natrolite from Madagascar
Nepheline
Formula: (Na,K)AlSiO4
Localities: Bezavona Massif, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ampasimena, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ampangorinana, Nosy Komba, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Localities: Marovato, Brickaville District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Volafolo, Ambatondrazaka District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
'Obsidian'
Locality: Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Obsidian from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
'Olivine'
Formula: (Mg,Fe2+)2SiO4
Localities: Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Nosy Tanikely, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Opal
Formula: SiO2 · nH2O
Localities: Reported from at least 17 localities in this region.
Photo: © ARLIGUIE M. Opal from Vohibola phlogopite deposit, Behara Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Opal var: Opal-AN
Formula: SiO2 · nH2O
Locality: Mangarivotra, Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
'Orthochevkinite'
Formula: (Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Locality: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Orthoclase
Formula: KAlSi3O8
Localities: Reported from at least 13 localities in this region.
Photo: © Arliguie M. Orthoclase from Vakinankaratra Region, Antananarivo Province, Madagascar
'Orthopyroxene Subgroup'
Localities: Ianakafy (Inanakafy), Ianakafy Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Iankaroka, Ianabinda Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Oxy-petscheckite'
Formula: UFe2/3(Nb,Ta)2O8
Locality: Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Palladoarsenide
Formula: Pd2As
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Palygorskite
Formula: (Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Localities: Beomby, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar (more information)
Pargasite
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Localities: Ambindandrakemba, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Beampingaratra Massif, Manevy Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Amboanemba-East thorianite deposit, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Esira area, Esira Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Parisite'
Locality: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Parisite-(Ce)
Formula: Ca(Ce,La)2(CO3)3F2
Localities: Itorendrika-Ifasina, Imorona valley, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Pectolite
Formula: NaCa2(HSi3O9)
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Pentlandite
Formula: (Fe,Ni)9S8
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Perovskite
Formula: CaTiO3
Localities: Amparafaravola, Amparafaravola District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Esira area, Esira Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Perthite'
Localities: Reported from at least 17 localities in this region.
'Petrified Wood'
Reference: Paul De Bondt specimen & photo
Photo: © Paul De Bondt. Petrified Wood from Madagascar
Petscheckite (TL)
Formula: UFe(Nb,Ta)2O8
Type Locality: Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Colour: black
Description: As metamict crystals up to 4 cm long and 2 cm thick with a greybrowh\n, brown, yellow or white crust of varying thickness.
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
Pezzottaite (TL)
Formula: Cs(Be2Li)Al2(Si6O18)
Type Locality: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Description: Found in a large miarolitic cavity containing large crystals of citrine quartz, green amazonite, albite, green-to pink spodumene and multicolored liddicoatite.
Reference: Laurs, B. L. et al. (2003): Pezzottaite from Ambatovita, Madagaascar: A new Gem mineral. Gems & Gemology 39 (4): 284-301; Hawthorne, F.C., Cooper, M.A., Simmons, W.B., Falster, A.U., Laurs, B.M., Armbruster, T., Rossman, G.R., Peretti, A., Günter, D., and Grobéty, B. (2004) Pezzottaite Cs(Be2Li)Al2Si6O18 A spectacular new beryl-group mineral from the Sakavalana pegmatite, Fianarantsoa province, Madagascar. Mineralogical Record: 35(5): 369-378; G. Diego Gatta, Ilaria Adamo, Martin Meven, Erica Lambruschi (2012): A single-crystal neutron and X-ray diffraction study of pezzottaite, Cs(Be2Li)Al2Si6O18. Physics and Chemistry of Minerals 39, 829-840.
Photo: © Chinellato Matteo. Pezzottaite from Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Pharmacosiderite
Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O
Locality: Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Phenakite
Formula: Be2SiO4
Localities: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Imalo, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ianapera emerald deposit (Sakalava), Ianapera Commune, Benenitra District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Photo: © D. Preite - M.C.. Phenakite from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Phillipsite'
Localities: Nosy Be Island, Nosy Be District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Ambohimahavony, Arivonimamo II Commune, Arivonimamo District, Itasy Region, Antananarivo Province, Madagascar
Baie des Amis, Antsiranana I Commune, Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Phlogopite
Formula: KMg3(AlSi3O10)(OH,F)2
Localities: Reported from at least 89 localities in this region.
Photo: © ARLIGUIE M. Phlogopite from Benato Phlogopite mines, Benato-Toby Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar
Phosphosiderite
Formula: FePO4 · 2H2O
Locality: Ambatoharanana pegmatite (Androfia), Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Phosphosiderite var: Vilateite
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Phosphuranylite
Formula: (H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Localities: Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Vinaninkarena Uranium deposit, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar ? (more information)
Photo: © Maggie Wilson. Phosphuranylite from Vinaninkarena Uranium deposit, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Platinum
Formula: Pt
Localities: Ambodibonara river, Sahafary, Vatomandry District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Ambodivolafotsy, Anosibe an' Ala District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Bemalaha, Vondrozo District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Localities: Reported from at least 6 localities in this region.
Photo: © 2012 A. Hanson. Pollucite from Tompoambohitra, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Polybasite
Formula: [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Potassic-fluoro-pargasite (TL)
Formula: {K}{Ca2}{Mg4Al}(Al2Si6O22)F2
Type Locality: Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Reference: Oberti, R., Boiocchi, M., Hawthorne, F.C., Pagano, R., Pagano, A. (2010): Fluoro-potassic-pargasite, KCa2(Mg4Al)(Si6Al2)O22F2 from the Tranomaro area, Madagascar: mineral description and crystal chemistry. Mineralogical Magazine, 74, 961-967
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Localities: Reported from at least 7 localities in this region.
Photo: © Arliguie M. Prehnite from Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province, Madagascar
Proustite
Formula: Ag3AsS3
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Localities: Matsaborivaky, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
'Psilomelane'
Localities: Reported from at least 16 localities in this region.
Pucherite
Formula: Bi(VO4)
Localities: Reported from at least 8 localities in this region.
Purpurite
Formula: (Mn3+,Fe3+)PO4
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Pyrargyrite
Formula: Ag3SbS3
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Pyrite
Formula: FeS2
Localities: Reported from at least 44 localities in this region.
Photo: © M Arliguie. Pyrite from Ikalamavony District, Ikalamavony Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Pyrochlore Group
Formula: A2Nb2(O,OH)6Z
Localities: Reported from at least 7 localities in this region.
Photo: © Chinellato Matteo. Pyrochlore Group from Sarodivotra, Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Pyrochlore Group var: Plumbopyrochlore (of Skorobogatova et al.)
Locality: Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Plumbopyrochlore (of Skorobogatova et al.) from Rare Earths Prospect, Befitina, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Pyrochlore Group var: Yttropyrochlore (of Hogarth 1977)
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Localities: Reported from at least 17 localities in this region.
Photo: Pyrochlore Supergroup from Madagascar
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)' (TL)
Type Locality: Ambolotara, Betafo Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Habit: masses ; octaedres
Reference: C.R.Acad.Sci. Paris (1912) 154, 1042/ . Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p , p 379
Localities: Recorded from at least 32 other localities in this region.
Photo: © 2001 John H. Betts. Betafite (of Hogarth 1977) from Vakinankaratra Region, Antananarivo Province, Madagascar
Pyrolusite
Formula: MnO2
Localities: Ampanihy rhodonite deposit, Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Ambalafolo, Midongy du Sud District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Ambindavato, Sakoa area, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Masokoamena, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Sarobaratra, Antanifotsy District, Vakinankaratra Region, Antananarivo Province, Madagascar ? (more information)
Photo: Pyrolusite from Ampanihy rhodonite deposit, Ampanihy District, Southwestern Region, Tuléar Province, Madagascar
Pyromorphite
Formula: Pb5(PO4)3Cl
Localities: Reported from at least 9 localities in this region.
Pyrope
Formula: Mg3Al2(SiO4)3
Locality: Ambahatany, Color-changing Garnet Mining Area, Ambahita Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Pyrophyllite
Formula: Al2(Si4O10)(OH)2
Locality: Ambatomena Toby, Isoanala Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Pyroxene Group'
Localities: Reported from at least 7 localities in this region.
Pyrrhotite
Formula: Fe1-xS (x = 0 to 0.17)
Localities: Reported from at least 10 localities in this region.
Photo: © Wolfgang Hampel. Pyrrhotite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Quartz
Formula: SiO2
Localities: Reported from at least 191 localities in this region.
Photo: © Rob Lavinsky. Quartz from Madagascar
Quartz var: Agate
Formula: SiO2
Reference: Mark Rheinberger photo and specimen
Localities: Recorded from at least 3 other localities in this region.
Photo: © Mark Rheinberger. Agate from Tuléar Province, Madagascar
Quartz var: Amethyst
Formula: SiO2
Localities: Reported from at least 39 localities in this region.
Photo: © 2003 Thames Valley Minerals. Amethyst from Vakinankaratra Region, Antananarivo Province, Madagascar
Quartz var: Chalcedony
Localities: Reported from at least 22 localities in this region.
Photo: © Martins da Pedra. Chalcedony from Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Quartz var: Citrine
Localities: Reported from at least 7 localities in this region.
Quartz var: Jasper
Localities: Reported from at least 7 localities in this region.
Photo: © Arliguie M. Jasper from Analalava area, Analalava District, Sofia Region, Mahajanga Province, Madagascar
Quartz var: Milky Quartz
Locality: Itremo massif, Itremo Commune, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: Milky Quartz from Itremo massif, Itremo Commune, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Quartz var: Onyx
Formula: SiO2
Locality: Vangaindrano District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Quartz var: Orbicular Jasper
Locality: Marovato, Ambolobozo, Analalava District, Sofia Region, Mahajanga Province (Majunga), Madagascar
Photo: © Mauro Rapazzini 2012. Orbicular Jasper from Marovato, Ambolobozo, Analalava District, Sofia Region, Mahajanga Province, Madagascar
Quartz var: Pseudocubic Quartz
Locality: Antoby, Ambohimasina Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Quartz var: Rose Quartz
Localities: Reported from at least 18 localities in this region.
Photo: © Jorge M. Alves. Rose Quartz from Tsaramanga pegmatite, Mahaiza Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Quartz var: Rutilated Quartz
Locality: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Quartz var: Sceptre Quartz
Localities: Ambatomanoina, Ambatomanoina Commune, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Lac Alaotra (Lake Alaotra), Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Photo: © Chinellato Matteo. Sceptre Quartz from Ambatomanoina, Ambatomanoina Commune, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Quartz var: Smoky Quartz
Formula: SiO2
Localities: Reported from at least 27 localities in this region.
Photo: © Rob Lavinsky. Smoky Quartz from Toamasina Province, Madagascar
Rhabdophane-(Nd)
Formula: (Nd,Ce,La)(PO4) · H2O
Locality: Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Rhabdophane-(Nd) from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Rhodizite
Formula: (K,Cs)Al4Be4(B,Be)12O28
Localities: Reported from at least 15 localities in this region.
Photo: © T. Kennedy 2002. Rhodizite from Vakinankaratra Region, Antananarivo Province, Madagascar
Rhodonite
Formula: MnSiO3
Localities: Ampanihy rhodonite deposit, Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Ambindavato, Sakoa area, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Lazarivo deposit, Lazarivo Commune, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Photo: © K.E.Larsen. Rhodonite from Ampanihy rhodonite deposit, Ampanihy District, Southwestern Region, Tuléar Province, Madagascar
Richterite
Formula: {Na}{CaNa}{Mg5}(Si8O22)(OH)2
Locality: Tsilamaha, Fianarantsoa Province, Madagascar
Photo: © Martins da Pedra. Richterite from Tsilamaha, Fianarantsoa Province, Madagascar
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Localities: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © Arliguie M. Riebeckite from Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Rockbridgeite
Formula: Fe2+Fe3+4(PO4)3(OH)5
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
Locality: Besakoa Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Roscoelite ?
Formula: K(V3+,Al)2(AlSi3O10)(OH)2
Locality: Ankadilalana Mine, Morafeno, South Zone, Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Rossmanite ?
Formula: ☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Locality: Anjahamiary pegmatite, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Rutile
Formula: TiO2
Localities: Reported from at least 32 localities in this region.
Photo: © Rob Lavinsky. Rutile from Mandrosonoro area, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Rutile var: Ilmenorutile
Formula: Fex(Nb,Ta)2x · 4Ti1-xO2
Localities: Reported from at least 11 localities in this region.
Photo: © Rob Lavinsky. Ilmenorutile from Antananarivo Province, Madagascar
Rutile var: Strüverite
Formula: (Ti,Ta,Fe)O2
Localities: Reported from at least 10 localities in this region.
Photo: Strüverite from Ialamitana Pegmatites, Sahanivotry Manandona Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Rynersonite
Formula: Ca(Ta,Nb)2O6
Localities: Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ampanodiana North pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © Knut Eldjarn. Rynersonite from Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Samarskite-(Y)
Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Localities: Reported from at least 27 localities in this region.
Photo: © M Arliguie. Samarskite-(Y) from Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sanidine
Formula: KAlSi3O8
Localities: Itrongay (Itrongahy), Mahasoa East Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ambano, Ambano Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sahatsio Bridge, Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Benono, Mahasoa East Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Andangovato, Isoanala Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © Rob Lavinsky. Sanidine from Itrongay, Mahasoa East Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar
Saponite var: Bowlingite
Locality: Bekiady, Soalala District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Sapphirine
Formula: (Mg,Fe)4-xAl4+x[Al4+xSi2-xO18]O2
Localities: Reported from at least 18 localities in this region.
Photo: © 2001 John H. Betts. Sapphirine from Morafeno, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
'Scapolite'
Localities: Reported from at least 31 localities in this region.
Photo: © 1995-2001 Trinity Mineral Co.. Scapolite from Morafeno, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
'Scapolite var: Wernerite'
Localities: Reported from at least 16 localities in this region.
Photo: © Arliguie M. Wernerite from Androtsabo, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Scheelite
Formula: Ca(WO4)
Localities: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ankarahara, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Unspecified chrysoberyl locality, Tsitondroina Commune, Ikalamavony District, Ikalamavony Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Scheelite var: Molybdoscheelite
Localities: Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Ambondrombe, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Schiavinatoite (TL)
Formula: (Nb,Ta)(BO4)
Type Locality: Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Habit: as cryptocrystalline portions in behierite
Reference: Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165
Localities: Recorded from at least 1 other locality in this region.
Photo: © fabreminerals.com. Schiavinatoite from Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 24 localities in this region.
Photo: © Arliguie M. Schorl from Ambatosoratra pegmatite, Ambatosoratra Commune, Ambatondrazaka District, Alaotra-Mangoro Region, Toamasina Province, Madagascar
Scolecite
Formula: CaAl2Si3O10 · 3H2O
Localities: Sakenite outcrops, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Antetezantany, Morarano Chrome Commune, Amparafaravola District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Square Clémenceau, Antsiranana I Commune, Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Scorodite
Formula: FeAsO4 · 2H2O
Locality: Bevalaha Cu deposit, Vohibory Cu Field, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Localities: Ampandrandava phlogopite mine, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Ambondrombe, Beraketa Commune, Bekily District, Androy Region, Tuléar Province (Toliara), Madagascar
Serendibite
Formula: (Ca,Na)2(Mg,Fe2+)3(Al,Fe3+)3[O2|(Si,Al,B)6O18]
Localities: Ianapera emerald deposit (Sakalava), Ianapera Commune, Benenitra District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Vohimena hill, Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Vohibola phlogopite deposit (Vohibolo; Vohiboly), Behara Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Serpentine Group'
Formula: D2[Si2O5](OH)4 + or - nH2O
Localities: Reported from at least 10 localities in this region.
Siderite
Formula: FeCO3
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Sillimanite
Formula: Al2(SiO4)O
Localities: Reported from at least 18 localities in this region.
Silver
Formula: Ag
Localities: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Betakilotra (Betankilotra), Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Rafiatokana gold prospect, Ankavandra Commune, Miandrivazo District, Menabe Region, Tuléar Province (Toliara), Madagascar
Photo: © Arliguie M. Silver from Rafiatokana gold prospect, Ankavandra Commune, Miandrivazo District, Menabe Region, Tuléar Province, Madagascar
Sinhalite
Formula: MgAl(BO4)
Locality: Vohibola phlogopite deposit (Vohibolo; Vohiboly), Behara Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Skutterudite var: Smaltite
Formula: (Co,Fe,Ni)As2
Locality: Rafiatokana gold prospect, Ankavandra Commune, Miandrivazo District, Menabe Region, Tuléar Province (Toliara), Madagascar
Smithsonite
Formula: ZnCO3
Locality: Ampiadiambato, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Sperrylite
Formula: PtAs2
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Spessartine
Formula: Mn2+3Al2(SiO4)3
Localities: Reported from at least 38 localities in this region.
Photo: © 2002 John H. Betts. Spessartine from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Spessartine var: Spandite
Locality: Lazarivo deposit, Lazarivo Commune, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Sphalerite
Formula: ZnS
Localities: Reported from at least 11 localities in this region.
Photo: © Wolfgang Hampel. Sphalerite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Spinel
Formula: MgAl2O4
Localities: Reported from at least 70 localities in this region.
Photo: © Michael C. Roarke. Spinel from Itrafo, Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Spinel var: Chromspinel
Formula: Mg(Al,Cr3+)2O4
Localities: Soamiakatra, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Spinel var: Ferropicotite
Localities: Andranomadio, Faratsiho District, Vakinankaratra Region, Antananarivo Province, Madagascar
Nosy Mitsio, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Antanifotsy District, Vakinankaratra Region, Antananarivo Province, Madagascar
Spinel var: Pleonaste
Localities: Antsiriky, Tuléar Province (Toliara), Madagascar
Antohidrano, Toamasina II District (Tamatave) , Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © K.E.Larsen. Pleonaste from Betroka District, Anosy Region, Tuléar Province, Madagascar
Spodumene
Formula: LiAlSi2O6
Localities: Reported from at least 16 localities in this region.
Photo: © SpiriferMinerals.com. Spodumene from Ampatsikahitra pegmatites, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Spodumene var: Hiddenite
Locality: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Spodumene var: Kunzite
Localities: Sakavalana mine, Ambatovita, Mandrosonoro area, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ampatsikahitra pegmatites (Ampasihiatra pegmatites), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © ARLIGUIE M. Kunzite from Ampatsikahitra pegmatites, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Staurolite
Formula: (Fe2+,Mg,Zn)1.5-2Al9(SiO4)4O6(OH,O)2
Localities: Ampandramaika pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Antananolofotsy, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Soanierana-Ivongo District, Analanjirofo Region, Toamasina Province (Tamatave), Madagascar
Malakialina area, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Photo: © JSS. Staurolite from Antananolofotsy, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Steacyite Group'
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Steacyite Group from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Stellerite
Formula: Ca[Al2Si7O18] · 7H2O
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Stellerite from Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Stewartite
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Stibiotantalite
Formula: Sb(Ta,Nb)O4
Localities: Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ampanodiana North pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Stibnite
Formula: Sb2S3
Locality: Antsirasira, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
'Stilbite'
Localities: Reported from at least 10 localities in this region.
Photo: © Dan Weinrich Minerals. Stilbite from Basalt Quarry, Ambariomiambana, Sambava District, Sava Region, Antsiranana Province, Madagascar
Stilbite-Ca
Formula: NaCa4[Al9Si27O72] · nH2O
Localities: Antetezambato Demantoid-Topazolite Mine, Antetezambato (Tetezambato), Maherivaratra Commune, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Basalt Quarry, Ambariomiambana, Sambava District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Photo: © Rob Lavinsky. Stilbite-Ca from Basalt Quarry, Ambariomiambana, Sambava District, Sava Region, Antsiranana Province, Madagascar
Strengite
Formula: FePO4 · 2H2O
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Sulphur
Formula: S8
Localities: Antsolifara, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Morafenobe District, Melaky Region, Mahajanga Province (Majunga), Madagascar
Kianjasoa, Mahasolo Commune, Tsiroanomandidy District, Bongolava Region, Antananarivo Province, Madagascar
Svanbergite
Formula: SrAl3(PO4)(SO4)(OH)6
Locality: Tsiambenana quarry, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Synchysite-(Ce)
Formula: Ca(Ce,La)(CO3)2F
Localities: Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Synchysite-(Ce) from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Synchysite-(Y)
Formula: Ca(Y,Ce)(CO3)2F
Locality: Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Photo: © Wolfgang Hampel. Synchysite-(Y) from Rare Earth prospect, Unnamed caldera, Betaimboay, Ampasindava Peninsula, Ambanja District, Diana Region, Antsiranana Province, Madagascar
Talc
Formula: Mg3(Si4O10)(OH)2
Localities: Reported from at least 10 localities in this region.
Talc var: Steatite
Formula: Mg3(Si4O10)(OH)2
Locality: Fitamalama, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Tantalite'
Formula: (Fe,Mn)(Ta,Nb)2O6
Localities: Reported from at least 6 localities in this region.
Photo: © K.E.Larsen. Tantalite from Antambobe, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Tantalite-(Fe)
Formula: FeTa2O6
Description: Specimen in the Muséum national d' Histoire Naturelle, Paris. (MNHN No 193.14). Excact locality not known
Reference: Muséum national d' Histoire Naturelle, Paris specimen MNHN No 193.14
Tantalite-(Mn)
Formula: MnTa2O6
Localities: Adaboroa pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Ilontsa (Ilotsa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
'Tapiolite'
Formula: (Fe,Mn)(Ta,Nb)2O6
Locality: Betanimena pegmatite, Ambato-Boeni District, Boeny Region, Mahajanga Province (Majunga), Madagascar
Taramite Group
Formula: A(CaNa)(Z2+3Z3+2)(Al2Si6O22)(OH,F,Cl)2
Locality: Unspecified chrysoberyl locality, Tsitondroina Commune, Ikalamavony District, Ikalamavony Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Tavorite
Formula: LiFe3+(PO4)(OH)
Locality: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Tengerite-(Y)
Formula: Y2(CO3)3 · 2-3H2O
Locality: Ampasipoana pegmatite, Mahavelona Commune, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar - erroneously reported
Tephroite
Formula: Mn2+2SiO4
Locality: Lazarivo deposit, Lazarivo Commune, Betioky District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Localities: Andakatany, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Moramanga District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Thermonatrite
Formula: Na2CO3 · H2O
Locality: Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
'Thomsonite'
Localities: Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Mt Tsiafajavona, Ambatolampy District, Vakinankaratra Region, Antananarivo Province, Madagascar
Baie des Amis, Antsiranana I Commune, Antsiranana District (Diego-Suarez), Diana Region (Northern Region), Antsiranana Province, Madagascar
Thorianite
Formula: ThO2
Localities: Reported from at least 51 localities in this region.
Photo: © Peter Haas. Thorianite from Amboasary District, Anosy Region, Tuléar Province, Madagascar
Thorianite var: Uranothorianite
Formula: (Th,U)O2
Localities: Reported from at least 6 localities in this region.
Photo: © Jasun McAvoy. Uranothorianite from Antanimora Commune, Ambovombe District, Androy Region, Tuléar Province, Madagascar
Thorite
Formula: (Th,U)SiO4
Localities: Reported from at least 11 localities in this region.
Photo: © Martins da Pedra. Thorite from Tranomaro-Maromby area, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Thorite var: Orangite
Localities: Reported from at least 10 localities in this region.
Photo: © Arliguie M. Orangite from Vorondolo massif, Fandriana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Thorite var: Uranothorite
Formula: (Th,U)SiO4
Locality: Fiadanana pegmatite (Fiadana pegmatite), Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Thorogummite
Formula: (Th,U)(SiO4)1-x(OH)4x
Localities: Reported from at least 9 localities in this region.
Photo: © Arliguie M. Thorogummite from Androtsabo, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Thortveitite
Formula: (Sc,Y)2Si2O7
Localities: Befanamo pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Antsakay, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Miarinkofeno pegmatite, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar ? (more information)
Photo: © . Thortveitite from Befanamo pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Titanite
Formula: CaTi(SiO4)O
Localities: Reported from at least 46 localities in this region.
Photo: © 1995-2001 Trinity Mineral Co.. Titanite from Ankarafa, Vohémar District, Sava Region, Antsiranana Province, Madagascar
Titanite var: Greenovite
Locality: Ampanobe, Ambalavao District, Matsiatra Region, Fianarantsoa Province, Madagascar
Topaz
Formula: Al2(SiO4)(F,OH)2
Localities: Reported from at least 23 localities in this region.
Photo: © . Topaz from Befotaka District, Atsimo-Atsinanana Region, Fianarantsoa Province, Madagascar
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Localities: Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Localities: Reported from at least 122 localities in this region.
Photo: © fabreminerals.com. Tourmaline from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Tourmaline var: Achroite'
Localities: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © Marek Patus. Achroite from Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Tourmaline var: Indicolite'
Localities: Anjahamiary pegmatite, Tranomaro Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ambatomena Toby, Isoanala Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Photo: © Arliguie M. Indicolite from Anjahamiary pegmatite, Tranomaro Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
'Tourmaline var: Rubellite'
Localities: Reported from at least 20 localities in this region.
Photo: © Rob Lavinsky. Rubellite from Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Localities: Reported from at least 14 localities in this region.
Photo: © Arliguie M. Tremolite from Antanimenabe, Sahatsiho-Ambohimanjaka Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Tridymite
Formula: SiO2
Localities: Ankaratra Mts, Antananarivo Province, Madagascar
Mt Tsiafajavona, Ambatolampy District, Vakinankaratra Region, Antananarivo Province, Madagascar
Mt Irifatra, Faratsiho District, Vakinankaratra Region, Antananarivo Province, Madagascar
Triphylite
Formula: LiFe2+PO4
Locality: Bemokoto pegmatite (Bemakoto), Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Triplite
Formula: (Mn2+,Fe2+)2(PO4)(F,OH)
Localities: Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ampandramaika pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Ambatoharanana pegmatite (Androfia), Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Bemokoto pegmatite (Bemakoto), Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Photo: © M Arliguie. Triplite from Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Trolleite
Formula: Al4(PO4)3(OH)3
Localities: Tsiambenana quarry, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Col d'Itremo, Itremo massif, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Tungstite
Formula: WO3 · H2O
Locality: Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Turkestanite
Formula: (K,◻)(Ca,Na)2(Th,U)[Si8O20] · nH2O
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Turquoise
Formula: Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Locality: Mt. Vohidraty (Vohidratsy), Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Photo: © K.E.Larsen. Turquoise from Mt. Vohidraty, Ampanihy District, Southwestern Region, Tuléar Province, Madagascar
'UM1998-//-BOSiO:AlFeMg[2]'
Formula: (Fe2+,Mg)2Al14Si4B4O37
Locality: Cap Andrahomana, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Unnamed (Ir Oxide; no. 1)'
Formula: IrO2
Locality: Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
'Unnamed (Pd Antimonide Arsenide)'
Formula: Pd3(Sb,As)
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
'Unnamed (Pd Hydroxide)'
Formula: Pd(OH)2
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
'Unnamed (Pd Oxide)'
Formula: PdO · 3H2O
Locality: Lavatrafo, Andriamena Commune, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Uraninite
Formula: UO2
Localities: Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Ambodibonara pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Befarafara, Maromokotra Commune, Vohémar District, Sava Region (Northeastern Region), Antsiranana Province, Madagascar
Photo: © M Arliguie. Uraninite from Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Uranocircite
Formula: Ba(UO2)2(PO4)2 · 10H2O
Locality: Vinaninkarena Uranium deposit, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © Arliguie M. Uranocircite from Vinaninkarena Uranium deposit, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Uranophane
Formula: Ca(UO2)2[HSiO4]2 · 5H2O
Localities: Ambodibonara pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Bemasoandro pegmatite, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
Malakialina pegmatites, Andanoa, Fitampito Commune, Ikalamavony District, Ampandramaika-Malakialina Pegmatite Field, Matsiatra Region, Fianarantsoa Province, Madagascar
'Uranpyrochlore (of Hogarth 1977)'
Formula: (U,Ca,Ce)2(Nb,Ta)2O6(OH,F)
Localities: Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar ? (more information)
Photo: © OT. Ljostad. Uranpyrochlore (of Hogarth 1977) from Estatoby, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
'Uranpyrochlore (of Hogarth 1977) var: Samiresite'
Localities: Samiresy, Tritriva Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Vorondolo massif, Fandriana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Fefena pegmatite, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Uvite'
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Localities: Marirana Pegmatites (Andasy), Marirana, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Vohimena hill, Sahambano Commune, Ihosy District, Horombe Region, Fianarantsoa Province, Madagascar
Valleriite
Formula: (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
Locality: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Vermiculite
Formula: (Mg,Fe,Al)3((Al,Si)4O10)(OH)2 · 4H2O
Localities: Reported from at least 24 localities in this region.
Vesuvianite
Formula: (Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Localities: Ranomainty, Manandona Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ampanobe, Ambalavao District, Matsiatra Region, Fianarantsoa Province, Madagascar
Marovato, Brickaville District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Ambatondragaby skarn outcrops, Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ambalamasina, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © Arliguie M. Vesuvianite from Ranomainty, Manandona Commune, Antsirabé 2 District, Vakinankaratra Region, Antananarivo Province, Madagascar
Vigezzite ?
Formula: (Ca,Ce)(Nb,Ti)2O6
Locality: Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Vincentite ?
Formula: Pd3As
Locality: Manampotsy placers, Antanambao Manampotsy District, Eastern Region (Atsinanana Region), Toamasina Province (Tamatave), Madagascar
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Localities: Marivolanitra pegmatite, Ambatofinandrahana District, Ampandramaika-Malakialina Pegmatite Field, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Antsirabé City, Vakinankaratra Region, Antananarivo Province, Madagascar
Sarobaratra, Antanifotsy District, Vakinankaratra Region, Antananarivo Province, Madagascar
'Wad var: Cobaltian Wad'
Localities: Ambatovy, Moramanga District, Alaotra-Mangoro Region, Toamasina Province (Tamatave), Madagascar
Pachoud Mine (Ambatovarahina Mine), Ambatofangehana, Manandriana Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Locality: Mt. Vohidraty (Vohidratsy), Ampanihy District, Southwestern Region, Tuléar Province (Toliara), Madagascar
Werdingite
Formula: (Mg,Fe)2Al14Si4B4O37
Locality: Cap Andrahomana, Ranopiso Commune, Taolañaro District (Fort Dauphin), Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Localities: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
South Zone, Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Mananjary emerald District, Mananjary District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar
Wollastonite
Formula: CaSiO3
Localities: Reported from at least 16 localities in this region.
Photo: © Wolfgang Hampel. Wollastonite from Unnamed wollastonite occurrence, Maromby Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Wulfenite
Formula: Pb(MoO4)
Localities: Besakay Mine, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Andavakoera, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
Berezika, Ambilobe District, Diana Region (Northern Region), Antsiranana Province, Madagascar
'Xanthitane'
Locality: Andriba, Maevatanana District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar
Xenotime-(Y)
Formula: Y(PO4)
Localities: Reported from at least 28 localities in this region.
Photo: © Arliguie M. Xenotime-(Y) from Ambohimasina Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Zektzerite
Formula: LiNa(Zr,Ti,Hf)Si6O15
Locality: Ampasibitika, Ampasindava Peninsula, Ambanja District, Diana Region (Northern Region), Antsiranana Province, Madagascar
'Zinnwaldite'
Formula: KLiFe2+Al(AlSi3O10)(F,OH)2
Localities: Anjanabonoina pegmatites, Ambohimanambola Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ankarinarivo pegmatite, Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Ambalalehifotsy pegmatite, Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Ambatomena Pegmatite, Col des Tapias, Ilaka Centre Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Photo: © Martins da Pedra. Zinnwaldite from Ambatomena Pegmatite, Col des Tapias, Ilaka Centre Commune, Ambositra District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar
Zircon
Formula: ZrSiO4
Localities: Reported from at least 64 localities in this region.
Photo: © Joseph A. Freilich. Zircon from Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region, Tuléar Province, Madagascar
Zircon var: Cyrtolite
Formula: Zr[(SiO4),(OH)4]
Locality: Tsaramanga pegmatite (Tongafeno pegmatite), Mahaiza Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: Cyrtolite from Ambatofotsy pegmatite, Mahavelona Commune, Soavinandriana District, Itasy Region, Antananarivo Province, Madagascar
Zircon var: Hafnian Zircon
Formula: (Zr,Hf)SiO4
Locality: Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © K.E.Larsen. Hafnian Zircon from Manjaka, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Zircon var: Malacon
Localities: Reported from at least 22 localities in this region.
Photo: © Arliguie M. Malacon from Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Zirconolite
Formula: CaZrTi2O7
Locality: Andranondambo sapphire deposits, Maromby Commune, Amboasary District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Zoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Locality: Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar
Photo: © K.E.Larsen. Zoisite from Estatoby, Sahatany Valley, Sahatany Pegmatite Field, Vakinankaratra Region, Antananarivo Province, Madagascar
Zoisite var: Thulite
Locality: Volonandrongo (Volonondrongo), Ambatofinandrahana District, Amoron'i Mania Region, Fianarantsoa Province, Madagascar


522 entries listed. 340 valid minerals. 12 type localities (valid minerals). 1 type locality (other). 1 erroneous literature entry.

References

Cortese, E. (1887): Osservazioni geognostiche sul Madagascar. Bollettino del R. Comitato Geologico. 5-6: 181-191.

Cortese, E. (1887): Una escursione al Madagascar dell'ingegnere E. Cortese. Bollettino del R. Comitato Geologico. 3-4: 129-134.

Cortese, E. (1888): Appunti geologici sull'isola di Madagascar. Bollettino del R. Comitato Geologico. 3-4.

Lacroix A. (1893-1913): Minéralogie de la France et des colonies. Libraire Polytechnique Baudry et Cie, Paris.

Peres, H. (1902): The Development of the Gold Deposits of Madagascar (Exploitaton des Gisements Auriferes a Madagascar). Memoires de la Société des Ingenénieurs Civils de France - April, 1902.

Lacroix, A. (1910): Minéralogie de la France et de ses Colonies (vol. 4, partie 2). Librairie Polytechnique, Paris, France.

Lacroix, A. (1912): Les richesses minérals de Madagascar. Conference à l'Ecole Coloniale. 23.12.1912. Revue politique et litéraire, Paris.

Gratap, L.P. (1916): Some minerals from Madagascar as described in prof. A. Lacroix's Mineralogie de la France et ses colonies. American Mineralogist 1: 17-34 + plate II

Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p

Lacroix, A. (1922) Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris.

Behier, J. (1957): Mineraux nouvellement trouves dans les pegmatites de Madagascar. in Commision de Coopération Technique en Afrique au Sud du Sahara (C.C.T.A.). Geologie. Comités regionaux Centre, Est et Sud. Conférence de Tananarive Avril 1957. I, 135-138

Giraud, P. (1957): Les champs pegmatitiques de Madagascar. in Commision de Coopération Technique en Afrique au Sud du Sahara (C.C.T.A.). Geologie. Comités regionaux Centre, Est et Sud. Conférence de Tananarive Avril 1957. I, 139-150

Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, 78p.

Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871

Murdock T. G. (1963): Mineral resources of the Malagasy Republic. US Department of the Interior, Bureau of Mines, Information Circular 8196

Besairie, H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive, 34, 92p.

Augé, T. and Legendre, O. (1992): Platinum-iron nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist: 30: 983-1004.

Pezzotta, F. (1999): Madagaskar Ein Paradies voll mit Mineralien und Edelsteinen. ExtraLapis, 17, 96p. [german version]

Pezzotta, F. (2001): Madagascar, a Mineral and gemstone Paradise. Extra Lapis English 1. [english version]

Pezzotta, F., Pagano R. (2005): Madagascar. Breve storia della ricerca mineralogica. Rivista Mineralogical Italiana. 30 (2): 76-86

Scovil, J. A. (2010): Tourmaline for Breakfast, a trip to Madagascar. Mineralogical Record. 41, 255-263, 266-270

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