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Berere Pegmatite Field, Bekapaika Commune, Tsaratanàna, Betsiboka, Madagascari
Regional Level Types
Berere Pegmatite FieldPegmatite Field
Bekapaika CommuneCommune
TsaratanànaDistrict
BetsibokaRegion
MadagascarCountry

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Key
Latitude & Longitude (WGS84):
16° South , 47° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~28km
Area:
100 km2
Locality type:
Köppen climate type:
Name(s) in local language(s):
Pegmatitan'i Berere, Distrikan'i Tsaratanána, Faritr'i Betsiboka, Faritanin'i Mahajanga, Madagasikara


The Berere pegmatite field covers a area about 100 km2 located250km N of Antananarivo. About 150 lenses and veins of pegmatite is found in the area.
The pegmatites which is situated west of the small town Tsaratanana are in general embedded in migmatites and pyroxene-amphibolites. Exploitation started here in the early 1950s. From 1951-1954 beryl was exploited. From 1959 columbite-tantalite was mined here. In july 1960 55 tons of Columbite was extracted from this area (Besaire 1966).
The area has been abandoned since 1960.

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Mahajanga Province (Majunga), MadagascarProvince

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

20 valid minerals. 2 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
'Albite-Anorthite Series'
Reference: Besairie, H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive, 34, p. 59-60
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Giraud, P; Bertucat, M & Giraudon (1957): Etude geologique et prospection de la feuille Betrandraka [P-42]1/100.00 et du champ pegmatique de Berere. Travaux Bureau Géologique nr 82, Service Géologique, Tananarive 1957.
Anatase
Formula: TiO2
Habit: < 5 mm large crystals
Colour: indigo blue
Description: Most probably found not in the pegmatite at Analila, but in the metamorphic rocks that are hosting the pegmatite
Reference: Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 15
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 11 localities in this region.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Localities: Reported from at least 10 localities in this region.
Bismuthinite
Formula: Bi2S3
Reference: Arliguie Michel collection and photo (Photo ID: 882110)
Bismutite
Formula: (BiO)2CO3
'Columbite-(Fe)-Columbite-(Mn) Series'
Localities: Reported from at least 12 localities in this region.
'Columbite-Tantalite'
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Localities: Reported from at least 9 localities in this region.
'Feldspar Group'
Localities: Reported from at least 9 localities in this region.
'Feldspar Group var: Perthite'
Localities: Reported from at least 9 localities in this region.
'Fergusonite'
Localities: Reported from at least 6 localities in this region.
'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 7 localities in this region.
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Colour: white, yellowish brown
Description: Crust on petscheckite together with liandratite and a pyrochlore group mineral
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
Ilmenite
Formula: Fe2+TiO3
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 59
Liandratite (TL)
Formula: U(Nb,Ta)2O8
Type Locality:
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
'Monazite'
Localities: Reported from at least 8 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 9 localities in this region.
Petscheckite (TL)
Formula: UFe(Nb,Ta)2O8
Type Locality:
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
Petscheckite var: Hydroxy-petscheckite
Formula: U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
Petscheckite var: Oxy-petscheckite
Formula: UFe3+2/31/3(Nb,Ta)2O8
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Description: A fingrained crust on petscheckite together with liandratite and halloysite
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)'
Formula: A2-mD2X6-wZ1+w
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV,p 59
Quartz
Formula: SiO2
Localities: Reported from at least 9 localities in this region.
Quartz var: Rose Quartz
Formula: SiO2
Rutile
Formula: TiO2
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Rutile var: Ilmenorutile
Formula: Fex(Nb,Ta)2x · 4Ti1-xO2
Reference: Behier, J. (1960): Travaux mineralogiques. In Rapport Annuel du Service Geologique pour 1960. Republique Madagascar, Tananarive. 181-199
Rutile var: Strüverite
Formula: (Ti,Ta,Fe)O2
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
Samarskite-(Y)
Formula: YFe3+Nb2O8
Localities: Reported from at least 6 localities in this region.
Spessartine
Formula: Mn2+3Al2(SiO4)3
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Thorite
Formula: Th(SiO4)
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Thortveitite
Formula: Sc2Si2O7
Reference: Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p. 20
Thortveitite var: Befanamite
Formula: Sc2Si2O7
Reference: Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p. 20
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Reference: Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p. 20
Xenotime-(Y)
Formula: Y(PO4)
Localities: Reported from at least 7 localities in this region.
Zircon
Formula: Zr(SiO4)
Reference: Michel Arliguie collection & photo (photo id 891532) ( Ex J. Behier collection)
Zircon var: Malacon
Formula: Zr(SiO4)
Reference: Michel Arliguie collection & photo (photo id 891532) ( Ex J. Behier collection)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bismuthinite2.DB.05Bi2S3
Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ilmenite4.CB.05Fe2+TiO3
Liandratite (TL)4.DH.35U(Nb,Ta)2O8
Petscheckite (TL)4.DH.35UFe(Nb,Ta)2O8
var: Hydroxy-petscheckite4.DH.35U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
var: Oxy-petscheckite4.DH.35UFe3+2/31/3(Nb,Ta)2O8
Quartz4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
var: Ilmenorutile4.DB.05Fex(Nb,Ta)2x · 4Ti1-xO2
var: Strüverite4.DB.05(Ti,Ta,Fe)O2
Samarskite-(Y)4.DB.25YFe3+Nb2O8
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
'Halloysite'9.ED.10Al2(Si2O5)(OH)4
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Thorite9.AD.30Th(SiO4)
Thortveitite9.BC.05Sc2Si2O7
var: Befanamite9.BC.05Sc2Si2O7
Vermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Zircon9.AD.30Zr(SiO4)
var: Malacon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Columbite-Tantalite'-
'Feldspar Group'-
'var: Perthite'-
'Fergusonite'-
'Garnet Group'-X3Z2(SiO4)3
'Monazite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'var: Betafite (of Hogarth 1977)'-A2-mD2X6-wZ1+w
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Anatase4.4.4.1TiO2
Rutile4.4.1.1TiO2
var: Ilmenorutile4.4.1.2Fex(Nb,Ta)2x · 4Ti1-xO2
var: Strüverite4.4.1.3(Ti,Ta,Fe)O2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Liandratite (TL)8.1.9.1U(Nb,Ta)2O8
Petscheckite (TL)8.1.9.2UFe(Nb,Ta)2O8
Samarskite-(Y)8.1.11.1YFe3+Nb2O8
A2B2O6(O,OH,F)
'Pyrochlore Supergroup
var: Betafite (of Hogarth 1977)'
8.2.3.1A2-mD2X6-wZ1+w
AB2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
Zircon51.5.2.1Zr(SiO4)
Group 55 - SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
Thortveitite55.2.1a.4Sc2Si2O7
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
'Halloysite'71.1.1.4Al2(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Vermiculite71.2.2d.3Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Columbite-Tantalite'-
'Feldspar Group'-
'var: Perthite'-
'Fergusonite'-
'Garnet Group'-X3Z2(SiO4)3
Kaolinite-Al2(Si2O5)(OH)4
'Monazite'-
Petscheckite
var: Hydroxy-petscheckite
-U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
var: Oxy-petscheckite-UFe3+2/31/3(Nb,Ta)2O8
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
Quartz
var: Rose Quartz
-SiO2
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
Thortveitite
var: Befanamite
-Sc2Si2O7
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
Xenotime-(Y)-Y(PO4)
Zircon
var: Malacon
-Zr(SiO4)

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H KaoliniteAl2(Si2O5)(OH)4
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
H HalloysiteAl2(Si2O5)(OH)4
H Petscheckite (var: Hydroxy-petscheckite)U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C Bismutite(BiO)2CO3
OOxygen
O LiandratiteU(Nb,Ta)2O8
O PetscheckiteUFe(Nb,Ta)2O8
O Zircon (var: Malacon)Zr(SiO4)
O ZirconZr(SiO4)
O AlbiteNa(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O BerylBe3Al2(Si6O18)
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O Samarskite-(Y)YFe3+Nb2O8
O SpessartineMn32+Al2(SiO4)3
O IlmeniteFe2+TiO3
O QuartzSiO2
O Bismutite(BiO)2CO3
O KaoliniteAl2(Si2O5)(OH)4
O Garnet GroupX3Z2(SiO4)3
O AnataseTiO2
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O Thortveitite (var: Befanamite)Sc2Si2O7
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
O Xenotime-(Y)Y(PO4)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Rutile (var: Strüverite)(Ti,Ta,Fe)O2
O RutileTiO2
O ThoriteTh(SiO4)
O Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
O Quartz (var: Rose Quartz)SiO2
O HalloysiteAl2(Si2O5)(OH)4
O Petscheckite (var: Hydroxy-petscheckite)U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
O Petscheckite (var: Oxy-petscheckite)UFe3+2/31/3(Nb,Ta)2O8
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O ThortveititeSc2Si2O7
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
AlAluminium
Al AlbiteNa(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al BerylBe3Al2(Si6O18)
Al SpessartineMn32+Al2(SiO4)3
Al KaoliniteAl2(Si2O5)(OH)4
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Al HalloysiteAl2(Si2O5)(OH)4
SiSilicon
Si Zircon (var: Malacon)Zr(SiO4)
Si ZirconZr(SiO4)
Si AlbiteNa(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si BerylBe3Al2(Si6O18)
Si SpessartineMn32+Al2(SiO4)3
Si QuartzSiO2
Si KaoliniteAl2(Si2O5)(OH)4
Si Garnet GroupX3Z2(SiO4)3
Si Thortveitite (var: Befanamite)Sc2Si2O7
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si ThoriteTh(SiO4)
Si Quartz (var: Rose Quartz)SiO2
Si HalloysiteAl2(Si2O5)(OH)4
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si ThortveititeSc2Si2O7
PPhosphorus
P Xenotime-(Y)Y(PO4)
SSulfur
S BismuthiniteBi2S3
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CaCalcium
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ScScandium
Sc Thortveitite (var: Befanamite)Sc2Si2O7
Sc ThortveititeSc2Si2O7
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti IlmeniteFe2+TiO3
Ti AnataseTiO2
Ti Rutile (var: Strüverite)(Ti,Ta,Fe)O2
Ti RutileTiO2
Ti Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
FeIron
Fe PetscheckiteUFe(Nb,Ta)2O8
Fe Samarskite-(Y)YFe3+Nb2O8
Fe IlmeniteFe2+TiO3
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Fe Rutile (var: Strüverite)(Ti,Ta,Fe)O2
Fe Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Fe Petscheckite (var: Hydroxy-petscheckite)U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
Fe Petscheckite (var: Oxy-petscheckite)UFe3+2/31/3(Nb,Ta)2O8
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Y Samarskite-(Y)YFe3+Nb2O8
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr Zircon (var: Malacon)Zr(SiO4)
Zr ZirconZr(SiO4)
NbNiobium
Nb LiandratiteU(Nb,Ta)2O8
Nb PetscheckiteUFe(Nb,Ta)2O8
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nb Samarskite-(Y)YFe3+Nb2O8
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
Nb Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Nb Petscheckite (var: Hydroxy-petscheckite)U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
Nb Petscheckite (var: Oxy-petscheckite)UFe3+2/31/3(Nb,Ta)2O8
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta LiandratiteU(Nb,Ta)2O8
Ta PetscheckiteUFe(Nb,Ta)2O8
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
Ta Rutile (var: Strüverite)(Ti,Ta,Fe)O2
Ta Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Ta Petscheckite (var: Hydroxy-petscheckite)U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
Ta Petscheckite (var: Oxy-petscheckite)UFe3+2/31/3(Nb,Ta)2O8
BiBismuth
Bi Bismutite(BiO)2CO3
Bi BismuthiniteBi2S3
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Th ThoriteTh(SiO4)
UUranium
U LiandratiteU(Nb,Ta)2O8
U PetscheckiteUFe(Nb,Ta)2O8
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
U Petscheckite (var: Hydroxy-petscheckite)U4+(Fe3+1/3,☐≥2/3)(Nb,Ta)2O≤7(OH)≥1
U Petscheckite (var: Oxy-petscheckite)UFe3+2/31/3(Nb,Ta)2O8

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Giraud, P; Bertucat, M & Giraudon (1957): Etude geologique et prospection de la feuille Betrandraka [P-42]1/100.00 et du champ pegmatique de Berere. Travaux Bureau Geologique nr 82, Service Geologique, Tananarive
Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, 134-135
Giraud, P. (1957): Le Champ pegmatique de Berere a 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 ,125-133
Varlamoff, N. (1972) Matériaux pour l´établissement des types et de la zonéographie des pegmatites granitiques à métaux rares de Madagascar - 1971. Académie royale des Sciences d`Oure-Mer. Classe des Sciences Naturelles et Médicales, N.S. , XVIII-6, 1-71 + planches. (p.40-59)
Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17, p.42-43 (german version)

Localities in this Region


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