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Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar

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(Faritra Vakinankaratra, Faritany Antananarivo, Madagasikara)

Vakinankaratra is the name of a region situated in the main Highland of Madagascar. Many foreign papers on minerals or labels on minerals from this region has often refered to this region as "Antsirabe-Betafo region".
Minerals from a large number of localities are often brought to the nearest market place where they are sold as gem materiale or minerals for collections. Some of the main marketplaces for minerals in Vakinankaratra are listed here: Ibity market, Sahanivotry, Ambohimanambola, Mahaiza and the town Antsirabe which also is a center for mineral trade. These names often occurs on labels but are not strictly localities just marketplaces.



References:
Lacroix, A. (1908): Les minéraux des filons de pegmatite á tourmaline lithique de Madagascar. Bulletin de la Société Francaise de Minéralogie 31: 218- 247




Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  'Adularia'
    KAlSi
     
    3
    		O
     
    8
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Aeschynite-(Y)
    (Y,Ca,Fe,Th)(Ti,Nb)
     
    2
    		(O,OH)
     
    6
    Colour: yellowish on outside (alteration) and greenbrownish inside.
    Description: Descibed as priorite
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
    Site Photo
    Tomboarivo pegmatite, Sahanivotry Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © ARLIGUIE M
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
  		•  Albite
    var: Cleavelandite
    Reference: [Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
  		•  'Albite-Anorthite Series'
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 601.]
  		•  'Allanite'
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Allanite-(Ce)
    {CaCe}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Larsen, K. E. (2003): Mineralene i Sahatany pegmatittfelt, Madagaskar. Bergverksmuseets skrifter 25, 5-18 (in norwegian)]
    Site Photo
    Antanetinilapa (Estatoby), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © K.E.Larsen
  		•  'Almandine-Pyrope Series'
    Reference: [Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.]
  		•  'Almandine-Spessartine Series'
    Reference: [Lacroix, A. (1922): Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris. p. 278-279.]
    Site Photo
    Ialamitana, Sahanivotry Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Marco Barsanti
  		•  Amesite
    Mg
     
    2
    		Al[(OH)
     
    4
    		|AlSiO
     
    5
    		]
    Reference: [Lefevre & Thomas (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. La Règne Minéral, nr 19, 15-28]
    Site Photo
    Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Anatase
    TiO
     
    2
    Description: Behier (1960) reports find of anatase from the region of Ambatofotsikley
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871 ]
    Site Photo
    Mahaiza, Mahaiza Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Antonio Borrelli
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Annite
    KFe
    2+
    3
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Colour: Black
    Description: Occurs in large plates.
    Reference: [De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.]
  		•  Anorthite
    var: Bytownite
    (Ca,Na)[Al(Al,Si)Si
     
    2
    		O
     
    8
    		]
    Reference: [Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.]
  		•  Anorthite
    var: Labradorite
    (Ca,Na)[Al(Al,Si)Si
     
    2
    		O
     
    8
    		]
    Reference: [Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.]
  		•  'Apatite'
    Colour: yellow transparent
    Description: A.Lacroix describes large crystals from this area
    Reference: [A.Lacroix (1922): Mineralogie de Madagascar,T.1, p 353]
    Site Photo
    Sahanivotry Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Apatite-(CaF)
    var: Mn-bearing Apatite-(CaF)
    (Ca,Mn
    2+
     
    		)
     
    5
    		(PO
     
    4
    		)
     
    3
    		(F,Cl,OH) or Ca
     
    5
    		([P,Mn
    3+
     
    		]O
     
    4
    		)
     
    3
    		(F,Cl,OH)
    Colour: blue; Prusse blue
    Description: A. Lacroix (1912) suggest that the blue tourmaline mentioned by Duparc et al(1910) is a misnomer for "manganapatite" which occured abundantly at the locality.
    Reference: [Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie 35 , 76-84]
    Site Photo
    Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © M Arliguie
  		•  Aragonite
    CaCO
     
    3
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Arsenic
    As
    Reference: [Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis nr 17, pp 53-54 (german edition)]
  		•  'Asbestos'
    Reference: [- Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Ashanite
    (Nb,Ta,U,Fe,Mn)
     
    4
    		O
     
    8
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  Augite
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
    Reference: [G. S. Chapus (1951): Antsirabe. Passé, présent, avenir. Tananarive. Imprimerie Lutherienne. p. 49-50.]
    Site Photo
    Mt Ivohitra, Antsirabé, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871. ]
  		•  Axinite-(Mn)
    Ca
     
    2
    		Mn
    2+
     
    		Al
     
    2
    		[OH|BSi
     
    4
    		O
     
    15
    		]
    Description: Knut Edvard Larsen collection, identified by XRD at MGM, Oslo 1998.
    Reference: [ Larsen, K. E. (2003): Mineralene i Sahatany pegmatittfelt, Madagaskar. Bergverksmuseets skrifter 25, 5-18 (in norwegian) ]
  		•  Baryte
    BaSO
     
    4
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  Behierite (TL)
    (Ta
    5+
     
    		,Nb
    5+
     
    		)[BO
     
    4
    		]
    Type Locality: Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé 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]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Antonio Borrelli
  		•  Beryl
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Colour: blue, yellow
    Reference: [Lacroix, A. (1922): Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris. p. 278-279.]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Beryl
    var: Aquamarine
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Reference: [Argulie M specimen]
    Site Photo
    Antanetinilapa (Estatoby), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © ARLIGUIE M
  		•  Beryl
    var: Morganite
    Reference: [Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
    Site Photo
    Anjanabonoina pegmatites, Mount Ikaka, Ambohimanambola Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Betafite (TL)
    (Ca,U)
     
    2
    		(Ti,Nb)
     
    2
    		O
     
    6
    		(OH)
    Type Locality: Ambolotara, Betafo Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé 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]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2001 John H. Betts
  		•  Biotite
    Reference: [Besairie H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive. 34, p 390]
  		•  Bismite
    Bi
     
    2
    		O
     
    3
    Reference: [Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 21]
  		•  Bismuth
    Bi
    Habit: small cleeavable masses
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris, p.156; Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
  		•  Bismuthinite
    Bi
     
    2
    		S
     
    3
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
    Site Photo
    Samiresy, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Bismutite
    (BiO)
     
    2
    		CO
     
    3
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 261. ]
  		•  Bityite (TL)
    CaLiAl
     
    2
    		[(OH)
     
    2
    		|BeAlSi
     
    2
    		O
     
    10
    		]
    Type Locality: Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé 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 (J.Behier (1960): Contribution a la mineralogie de Madagascar. Ann.Geol.de Mad. XXIX. Found on tourmaline or quartz
    Reference: [Lacroix,A.(1922): "Minéralogie de Madagascar".Paris.Tome 1, 398-400 + planche 18 / J. Behier (1960): Contribution à la Mineralogie de Madagascar. Ann.Geol.Mad. XXIX,]
    Site Photo
    Antanetinilapa (Estatoby), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Knut Eldjarn
  		•  Calcite
    CaCO
     
    3
    Reference: [Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-78 ]
  		•  Cassiterite
    SnO
     
    2
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  'Chabazite'
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 601.]
  		•  'Chalcedony'
    Description: Lacroix (1912) uses the name Tompobohitra for the locality. This is most probably todays Ankarinarivo (cfr also Rakotoarison 1964)
    Reference: [Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-84 ]
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Chevkinite-(Ce)
    (Ce,La,Ca,Th)
     
    4
    		(Fe
    2+
     
    		,Mg)(Fe
    2+
     
    		,Ti,Fe
    3+
     
    		)
     
    2
    		(Ti,Fe
    3+
     
    		)
     
    2
    		[O
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
     
    2
    Description: Samples labelled "chevkinite-(Ce) has been showed to be allanite-(Ce). See Larsen (2003)
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
    Site Photo
    Antanetinilapa (Estatoby), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © luigi chiappino
  		•  Chrysoberyl
    BeAl
     
    2
    		O
     
    4
    Reference: [Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59 ]
  		•  Chrysocolla
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Clinobisvanite
    BiVO
     
    4
    Reference: [Extra Lapis nr 17. Madagascar p 4 (german edition)]
  		•  Clinochlore
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Clinochlore
    var: Ripidolite
    (Mg,Fe,Al)
     
    6
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris; p 202]
  		•  Clinohumite
    (Mg,Fe
    2+
     
    		)
     
    9
    		[(F,OH)
     
    2
    		|(SiO
     
    4
    		)
     
    4
    		]
    Reference: [Knut Edvard Larsen collection]
  		•  'Clinoptilolite'
    Description: Earlier erronously labeled as heulandite (Lefevre & Thomas (1998).
    Reference: [Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis nr 17, pp 53-54 (german edition)]
    Site Photo
    Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © OT. Ljostad
  		•  Columbite
    (Fe,Mn)(Nb,Ta)
     
    2
    		O
     
    6
    Habit: Forms observed: {011},{032},{021},{221},{131},{150},{170},[012},{641},{123},{143},{145},{344}
    Description: Crystals to 1,5 kg has been observed (Lacroix 1922)
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 366-369]
    Site Photo
    Tsaramanga (Tongafeni; Itongafeno) pegmatite, Mahaiza Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Marek Patus
  		•  Columbite-(Fe)
    FeNb
     
    2
    		O
     
    6
    Description: A Mn-rich ferrocolumbite
    Reference: [Rocks & Minerals nr 2,2003; Tarantino, S. C, Zema M. (2005): Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution: A single-crystal X-ray diffraction study. American Mineralogist 90: 1291-1300]
    Site Photo
    Tsaramanga (Tongafeni; Itongafeno) pegmatite, Mahaiza Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  Columbite-(Mn)
    (Mn,Fe)(Nb,Ta)
     
    2
    		O
     
    6
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse]
    Site Photo
    Ampasogona (Ampasagona) pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Antonio Borrelli
  		•  'Columbite-Tantalite'
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
    Site Photo
    Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Cookeite
    LiAl
     
    4
    		(Si
     
    3
    		Al)O
     
    10
    		(OH)
     
    8
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  Cordierite
    (Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    5
    		O
     
    18
    Description: The cordierite listed is probably from a locality nearby, not from the Tsilaizina pegmatite
    Reference: []
    Site Photo
    Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Corundum
    Al
     
    2
    		O
     
    3
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 251]
  		•  Corundum
    var: Ruby
    Al
     
    2
    		O
     
    3
    Reference: [Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.]
  		•  Corundum
    var: Sapphire
    Al
     
    2
    		O
     
    3
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Danburite
    CaB
     
    2
    		Si
     
    2
    		O
     
    8
    Reference: [Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2003 Thames Valley Minerals
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871. ]
    Site Photo
    Mt Ibity (Mt Bity), Ibity massif, Ibity Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  Dravite
    [Na][Mg
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Pezzotta F., Pagano R., 2005. Madagascar. Breve storia della ricerca mineralogica. Riv. Mineral. Ital., 30, 2: 76-86]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 1995-2001 Trinity Mineral Co.
  		•  'Dravite-Schorl Series'
    Reference: [De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.]
  		•  Edenite
    Na[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
  		•  Elbaite
    [Na][(Li,Al)
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
    Site Photo
    Manapa pegmatite Field, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2003 Thames Valley Minerals
  		•  Elbaite
    var: Tsilaisite
    Na(Mn
    2+
     
    		AlFe
    2+
     
    		)
     
    3
    		Al
     
    6
    		[(O,OH,F)
     
    4
    		│(OH)
     
    3
    		│(BO
     
    3
    		)
     
    3
    		│Si
     
    6
    		O
     
    18
    		]
    Reference: []
    Site Photo
    Tsilaizina (Tsilaisina) pegmatite, Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  'Elbaite-Liddicoatite Series'
    Reference: [Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
     
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris; p 202]
    Site Photo
    Ampangabé pegmatite, Faratsiho District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2006 M. Kampf
  		•  Evansite
    Al
     
    3
    		[(OH)
     
    6
    		|PO
     
    4
    		] · 6H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Euxenite-(Y)
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    		O
     
    6
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. ]
    Site Photo
    Samiresy, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  'Faratsihite'
    Habit: massive
    Colour: white creme
    Description: The typematerial of the now discredited faratshite was found in a roadcut about 10 km from Faratsiho on the road to Sambaina. It was found in an altered volcanique rock (basalt or trachyte)as an elliptical mass of 2 x 1 meter
    Reference: [Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive.]
  		•  'Feldspar Group'
    Reference: [Rakotoarison, W. (1964): Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39.]
  		•  'Fergusonite'
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
    Site Photo
    Ambohimasina Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Fersmite
    (Ca,Ce,Na)(Nb,Ta,Ti)
     
    2
    		(O,OH,F)
     
    6
    Reference: [Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59 ]
  		•  Feruvite
    [Ca][(Fe
    2+
     
    		 ,Mg)
     
    3
    		][MgAl
     
    5
    		][(OH)
     
    3
    		|F|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Gunnar Färber, Samswegen, 2005]
    Site Photo
    Anjanabonoina pegmatites, Mount Ikaka, Ambohimanambola Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Peter Kohorst
  		•  Fluorite
    CaF
     
    2
    Habit: massive
    Reference: [Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-84 ]
  		•  Forsterite
    Mg
     
    2
    		[SiO
     
    4
    		]
    Reference: [Knut Edvard Larsen collection]
  		•  Fergusonite-(Y)
    YNbO
     
    4
    Reference: [Rob Lavinsky specimen]
    Site Photo
    Ambalabe pegmatite, Manapa pegmatite Field, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  Gahnite
    ZnAl
     
    2
    		O
     
    4
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [Rakotoarison, W. (1964): Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39.]
    Site Photo
    Sahanivotry Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © ARLIGUIE M
  		•  Gedrite
    ☐[Mg
     
    2
    		][Mg
     
    3
    		Al
     
    2
    		][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Gibbsite
    Al(OH)
     
    3
    Reference: [Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. ]
  		•  Gold
    Au
    Reference: [Arliguie M collection (old label)]
    Site Photo
    Antsirabé, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Graphite
    C
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Grossular ?
    Ca
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Lacroix, A. (1908): Les minéraux des filons de pegmatite á tourmaline lithique de Madagascar. Bulletin de la Société Francaise de Minéralogie 31: 218- 247]
  		•  Hambergite
    Be
     
    2
    		[O|OH|BO
     
    2
    		]
    Habit: faces: (010), (100), prism (310)
    Description: First described from Anjanabonoina by Lacroix (1909).
    Reference: [Lacroix, A. (1909): Sur la hambergite de Madagascar. Bulletin de la Société française de Minéralogie, Paris. 32, 320-324; Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200 Min. Record 20 (1989), p 191-200/]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Hastingsite
    [Na][Ca
     
    2
    		][Fe
    2+
    4
    		Fe
    3+
     
    		][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Geologique A. 1871]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Lacroix, A. (1922): Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris. p. 278-279.]
  		•  'Heulandite'
    Description: Described by LeFevre & Thomas as heulandite but later showed to actually be clinoptilolite (Pezzotta 1999)
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
  		•  Hübnerite
    MnWO
     
    4
    Reference: [Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis nr 17, pp 53-54 (german edition)]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [Behier, J. (1963): Carte minéralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Ixiolite
    (Ta,Nb,Sn,Fe,Mn)
     
    4
    		O
     
    8
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  Ixiolite
    var: Wolframoixiolite
    (Nb,W,Ta,Fe,Mn,Nb)
     
    2
    		O
     
    4
    Description: (Mn1,63Ta1,10W0,79Nb0,50)4,02 O8 (Ranorosoa 1986)
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse]
  		•  'K Feldspar'
    Colour: grey
    Reference: [AmMin 86:1536]/ Laurs, B. M. et al(2002): Rhodizite-londonite from the Antsongombato pegmatite, Central Madagascar. Gems & Mineralogy. 38 (4), 326-339 ]
  		•  Lazulite
    (Mg,Fe
    2+
     
    		)Al
     
    2
    		[OH|PO
     
    4
    		]
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Geologique A. 1871; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 910.]
  		•  Lepidolite
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Liddicoatite (TL)
    [Ca][Li
     
    2
    		Al][Al
     
    6
    		][(OH)
     
    3
    		|F|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Type Locality: Antsirabé, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    Description: The type material came from an undisclosed locality near Antsirabé
    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.]
    Site Photo
    Antsirabé, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  Lithiophilite
    LiMn
    2+
     
    		[PO
     
    4
    		]
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse]
  		•  Londonite (TL)
    (Cs,K,Rb)Al
     
    4
    		Be
     
    4
    		(B,Be)
     
    12
    		O
     
    28
    Type Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé 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]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  'Londonite-Rhodizite Series'
    Description: Specimens of rhodizite/londonite, when not individually determined chemically from this locality should be designed londonite-rhodizite series
    Reference: [Laurs, B. M.; Pezzotta, F.; Simmons, W.; Falster, A. U & Muhlmeister, S. (2002): Rhodizite-londonite from the Antsongombato pegmatite, Central Madagascar. Gems & Mineralogy. 38 (4), 326-339 ]
    Site Photo
    Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
     
  		•  Magnesiotaaffeite-2N’2S
    Mg
     
    3
    		Al
     
    8
    		BeO
     
    16
    Habit: colourless grains
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Manandonite (TL)
    LiAl
     
    4
    		Si
     
    3
    		BO
     
    10
    		(OH)
     
    6
    Type Locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé 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]
    Site Photo
    Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2003 Thames Valley Minerals
  		•  Marcasite
    FeS
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris; p 225]
  		•  Microcline
    var: Amazonite
    Reference: [Rakotoarison, W. (1964): Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39]
    Site Photo
    Imalo, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Antonio Borrelli
  		•  Microlite
    (Ca,Na)
     
    2
    		Ta
     
    2
    		O
     
    6
    		(O,OH,F)
    Habit: rounded crystals
    Colour: bright yellow
    Description: uraniferous
    Reference: [Nizamoff, J.W. et al.(2000): Recent mining at the Antandrokomby pegmatite, Madagascar. 26th Rochester Mineralogical Symposium. Rocks & Minerals, july 2000]
  		•  Mirabilite
    Na
     
    2
    		SO
     
    4
    		·10H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Molybdenite
    MoS
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
  		•  'Monazite'
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 377]
    Site Photo
    Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Joseph A. Freilich
  		•  Monazite-(Ce)
    (Ce,La,Nd,Th)PO
     
    4
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
    Site Photo
    Ambolotara, Betafo Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Joseph A. Freilich
  		•  Montmorillonite
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871. ]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Lacroix, A. (1922): Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris. p. 278-279.]
  		•  Muscovite
    var: Damourite
    Habit: massive
    Colour: light greenish
    Reference: [Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive. p 32]
  		•  Muscovite
    var: Fuchsite
    K(Al,Cr)
     
    3
    		Si
     
    3
    		O
     
    10
    		(OH)
     
    2
    Reference: [Arliguie M collection (old sample)]
    Site Photo
    Vavato massif, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Muscovite
    var: Gilbertite
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
  		•  'Olivine'
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Opal
    SiO
     
    2
    		·nH
     
    2
    		O
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse]
  		•  Orthoclase
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [RRUFF ID: R080064.2 ]
    Site Photo
    Antsirabé, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Palygorskite
    (Mg,Al)
     
    5
    		(Si,Al)
     
    8
    		O
     
    20
    		(OH)
     
    2
    		·8H
     
    2
    		O
    Reference: [Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-84 ]
  		•  Phenakite
    Be
     
    2
    		[SiO
     
    4
    		]
    Description: Wilson (1984) mentions a find of a pocket with danburite and phenakite. About 50 crystals of clear, colorless, prismatic phenakite from 5mm wide and, 15 cm long to 2,5 cm wide and 8 cm long were mined.
    Reference: [Wilson, W.E. (1984): What's new in Minerals ? Munich show 1983. Mineralogical Record 15: 118; Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200 ]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Description: Inclusions in corundum.
    Reference: [Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.]
  		•  Phosphuranylite
    (H
     
    3
    		O)
     
    3
    		KCa(UO
     
    2
    		)
     
    7
    		[O|PO
     
    4
    		]
     
    4
    		 · 8H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Pollucite
    (Cs,Na)
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    Reference: [Pezzotta, F.; Diella, V. & Demartin, F. (2003): Londonit aus Madagaskar- eine neue Mineralart. Lapis 35 (2), 35-38]
  		•  'Psilomelane'
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. ]
  		•  Pucherite
    BiVO
     
    4
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1051; Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
  		•  Pyrite
    FeS
     
    2
    Description: limonitized pyrite crystals (cubes)has been observed on columbite (Lacroix 1922)
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 368]
  		•  Pyrochlore
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. ]
    Site Photo
    Sarodivotra, Anjanabonoina pegmatites, Mount Ikaka, Ambohimanambola Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Chinellato Matteo
  		•  'Pyrochlore Group'
    Description: Pezzotta (1999) mentions octahedral crystals with a composition in the range pyrochlore-betafite
    Reference: [Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59 ]
  		•  Pyrolusite
    MnO
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Pyromorphite
    Pb
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. ]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Quartz
    SiO
     
    2
    Reference: [Lacroix, A. (1922): Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris. p. 278-279.]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © G. Bijak
  		•  Quartz
    var: Amethyst
    SiO
     
    2
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p. 199 + plate 4]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2003 Thames Valley Minerals
  		•  Quartz
    var: Citrine
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Quartz
    var: Rose Quartz
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 199]
    Site Photo
    Tsaramanga (Tongafeni; Itongafeno) pegmatite, Mahaiza Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Jorge M. Alves
  		•  Quartz
    var: Rutilated Quartz
    Description: Known locally as "cheveux de Venus" (hair of Venus)
    Reference: [Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
  		•  Quartz
    var: Smoky Quartz
    SiO
     
    2
    Reference: [Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © G. Bijak
  		•  Rhodizite
    (K,Cs)Al
     
    4
    		Be
     
    4
    		(B,Be)
     
    12
    		O
     
    28
    Habit: Well-formed crystals from a few mm to 1,5 cm
    Colour: colorless, white to pale greenish-yellow
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p ; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 330; Canadian Mineralogist (2001): 39: 747-755.]
    Site Photo
    Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © T. Kennedy 2002
  		•  Rutile
    TiO
     
    2
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 221-222]
  		•  Rutile
    var: Ilmenorutile
    Fe
     
    x
    		(Nb,Ta)
     
    2x
    		·4Ti
     
    1-x
    		O
     
    2
    Habit: masses of several kilos, crystals are rare (A.Lacroix)
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 231]
  		•  Rutile
    var: Strüverite
    (Ti,Ta,Fe)O
     
    2
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 225-226]
    Site Photo
    Samiresy, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Rob Lavinsky
  		•  Rynersonite
    Ca(Ta,Nb)
     
    2
    		O
     
    6
    Habit: prismatic
    Colour: dark gray
    Description: As alteration of behierite-schiavinatoite crystals. Identification has been confirmed by single-crystal X-ray diffraction by RRUFF. (RRUFF ID: R080064.2)
    Reference: [Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98; RRUFF ID: R080064.2 ]
    Site Photo
    Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Knut Eldjarn
  		•  Samarskite-(Y)
    (Y,Fe
    3+
     
    		,Fe
    2+
     
    		,U,Th,Ca)
     
    2
    		(Nb,Ta)
     
    2
    		O
     
    8
    Description: Often found in close association with columbite. Specimens from J.Behiers collection marked "Ampangabeite" has been found to be Samarskite-(Y)
    Reference: [Rocks & Minerals nr 2 , 2003/ Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive]
    Site Photo
    Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © M Arliguie
  		•  Sanidine
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  'Scapolite'
    Reference: [Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [Extra Lapis nr 17. Madagascar p 54 (german edition); Nizamoff, J.W. et al.(2000): Recent mining at the Antandrokomby pegmatite, Madagascar. 26th Rochester Mineralogical Symposium. Rocks & Minerals, july 2000]
  		•  Schiavinatoite (TL)
    (Nb,Ta)BO
     
    4
    Type Locality: Antsongombato gem mine, FKT Antsentsindrano, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé 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]
    Site Photo
    Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Knut Eldjarn
  		•  Schorl
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © G. Bijak
  		•  Sillimanite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871 ]
    Site Photo
    Anjanabonoina pegmatites, Mount Ikaka, Ambohimanambola Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2002 John H. Betts
  		•  Spinel
    MgAl
     
    2
    		O
     
    4
    Reference: [Ranorosoa, N (1986) : Etude mineralogique des pegmatites du champ de la Sahatany, Madagscar. These de doctorat, Toulouse]
    Site Photo
    Ampanivana area, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Michael C. Roarke
  		•  Spinel
    var: Chromspinel
    Mg(Al,Cr
    3+
     
    		)
     
    2
    		O
     
    4
    Description: Inclusions in corundum.
    Reference: [Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Ore Geology Reviews 34, 134-154.]
  		•  Spinel
    var: Ferropicotite
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 326]
  		•  Spodumene
    LiAl[Si
     
    2
    		O
     
    6
    		]
    Reference: [Lacroix, A. (1912): Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, Paris 35 , 76-84 ]
    Site Photo
    Ampatsikahitra (Ampasihiatra) pegmatites, Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
     
  		•  Spodumene
    var: Kunzite
    Reference: [Rakotoarison, W. (1964): Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39]
    Site Photo
    Ampatsikahitra (Ampasihiatra) pegmatites, Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © ARLIGUIE M
  		•  Staurolite
    (Fe
    2+
     
    		,Mg,Zn)
     
    1.5-2
    		Al
     
    9
    		[O
     
    6
    		|(OH,O)
     
    2
    		|(SiO
     
    4
    		)
     
    4
    		]
    Reference: [Knut Edvard Larsen pers.com 2009 & collection]
    Site Photo
    Antananolofotsy, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Martins da Pedra
  		•  Stibiotantalite
    Sb(Ta,Nb)O
     
    4
    Description: As alteration of behierite-schiavinatoite crystals
    Reference: [Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98]
  		•  Sulphur
    S
     
    8
    Reference: [Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p.155]
  		•  Talc
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Lefevre, M. & Thomas, L. (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. Le Règne Minéral no 19, 15-28 ]
  		•  Talc
    var: Steatite
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Tantalite
    (Fe,Mn)(Ta,Nb)
     
    2
    		O
     
    6
    Description: Probably Tantalite-(Mn) ?
    Reference: [Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis nr 17, pp 53-54 (german edition)]
  		•  Tantalite-(Mn)
    MnTa
     
    2
    		O
     
    6
    Reference: [Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165]
    Site Photo
    Tetezantsio pegmatites (Antetezantsio), Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Chinellato Matteo
  		•  Thermonatrite
    Na
     
    2
    		CO
     
    3
    		·H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  'Thomsonite'
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [Besairie H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive. 34, p. 71]
    Site Photo
    Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Thorite
    var: Orangite
    Reference: [Besairie H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive. 34, p. 71]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [Besairie H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive. 34, p. 71]
  		•  Topaz
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]
    Reference: [Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive.p 32]
  		•  'Tourmaline'
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
    Site Photo
    Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © O. Dziallas
  		•  'Tourmaline
    var: Achroite'
    Reference: [Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
    Site Photo
    Anjanabonoina pegmatites, Mount Ikaka, Ambohimanambola Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Marek Patus
  		•  'Tourmaline
    var: Rubellite'
    Reference: [Rakotoarison, W. (1964): Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39]
    Site Photo
    Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © 2003 Thames Valley Minerals
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871. ]
  		•  Tridymite
    SiO
     
    2
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Uranmicrolite
    (U,Ca,Ce)
     
    2
    		(Ta,Nb)
     
    2
    		O
     
    6
    		(OH,F)
    Description: Spelled as uranomikrolith in Pezzotta (1999)
    Reference: [Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis nr 17, pp 53-54 (german edition)]
  		•  Uranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    Reference: [Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive. p 69-70]
    Site Photo
    Vinaninkarena Uranium deposit, Vinaninkarena Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Uranpyrochlore
    (U,Ca,Ce)
     
    2
    		(Nb,Ta)
     
    2
    		O
     
    6
    		(OH,F)
    Reference: [RRUFF specimen R060165]
    Site Photo
    Antanetinilapa (Estatoby), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © OT. Ljostad
  		•  Uranpyrochlore
    var: Samiresite
    Reference: [Bull. Soc. franc.Mineral. 35 (1912), pp 84-92/ A.Lacroix: (1922) Mineralogie de Madagascar I ,p 283]
  		•  Uvite
    [Ca][(Mg,Fe
    2+
     
    		)
     
    3
    		][MgAl
     
    5
    		][(OH)
     
    3
    		|F|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Colour: green
    Description: Found in the Marirana South pegmatite. One small fragment of green tourmaline was analyzed by (Ranorosoa 1986) and found to be an uvite
    Reference: [Ranorosoa N (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulose]
  		•  Vermiculite
    (Mg,Fe,Al)
     
    3
    		(Al,Si)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·4H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871 ]
  		•  Vesuvianite
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
    Colour: brownish-red
    Description: Crystals to 50 mm long (Behier 1960, Arligue M. specimen larger)
    Reference: [Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 43-44]
    Site Photo
    Ranomainty, Manandona Commune, Antsirabé 2 District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Vigezzite ?
    (Ca,Ce)(Nb,Ti)
     
    2
    		O
     
    6
    Description: As alteration of behierite-schiavinatoite crystals
    Reference: [Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98]
  		•  Vivianite
    Fe
    2+
    3
    		(PO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871]
  		•  Xenotime-(Y)
    YPO
     
    4
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871 ]
    Site Photo
    Ambohimasina Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Arliguie M
  		•  Zinnwaldite
    KLiFe
    2+
     
    		Al[(F,OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200]
    Site Photo
    Ankarinarivo pegmatite, Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © Martins da Pedra
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59 ]
    Site Photo
    Samiresy, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © ARLIGUIE M
  		•  Zircon
    var: Cyrtolite
    Zr[(SiO
     
    4
    		),(OH)
     
    4
    		]
    Description: Cyrtolite mentioned as a associated mineral to "blomstrandite" in Lacroix (1912), but described as malacon later in Lacroix 1922
    Reference: [Lacroix, A. (1912): Sur un groupe de niobotantalates cubiques, radioactifs, des pegmatites du Vakinankaratra . Bulletin de la Société française de Minéralogie, Paris 35 , 85-92]
  		•  Zircon
    var: Hafnian Zircon
    Reference: [K.E.Larsen collection, analyzed (XRD) by Skip Simmons 1999]
    Site Photo
    Manjaka (Ampatika; Sahananana), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © K.E.Larsen
  		•  Zircon
    var: Malacon
    Reference: [Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871]
    Site Photo
    Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
    © ARLIGUIE M
  		•  Zoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Lefevre & Thomas (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. La Règne Minéral, 19, 15-28]


    192 entries listed. 123 valid minerals. 7 type localities (valid minerals). 3 erroneous literature entries.

    Localities in this Region:
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region (Betafo - Antsirabé region)
          • Ambano Commune
            • Mount Ikaka
            • FKT Antsentsindrano

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 24th Nov 2009 00:27:29