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Sofia, Madagascari
Regional Level Types
SofiaRegion
MadagascarCountry

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Name in Malagasy:Faritr'i Sofia, Madagasikara
Neighbouring regions:
Locality type:Region
Largest Settlements:
PlacePopulation
Antsohihy21,290 (2018)
Bealanana16,948 (2018)
Antsirabe Afovoany13,000 (2018)


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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

16 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

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Alphabetical List Tree Diagram

Detailed Mineral List:

Beryl
Formula: Be3Al2(Si6O18)
Chromite
Formula: Fe2+Cr3+2O4
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Corundum
Formula: Al2O3
Reference: Knut Edvard Larsen collection
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: 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
'Feldspar Group'
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60
'Feldspar Group var: Perthite'
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60
Goethite
Formula: α-Fe3+O(OH)
Reference: Royal Museum for Central Africa, Belgium collection Sample # 13894
Ilmenite
Formula: Fe2+TiO3
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60
Ixiolite
Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Reference: Bull. Geol.Soc.Finland 41,75-77 (1969)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60
'Orbicular Jasper'
Reference: Lieber, W. (2003): Sphärolithischer Chalcedon von Madagaskar. LAPIS 28 (9), 18-22
Pyrite
Formula: FeS2
Reference: specimen in the collection of Rock Currier
Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
Quartz var: Agate
Reference: Natural History Museum Vienna collection
Quartz var: Amethyst
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2
Quartz var: Jasper
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Knut Edvard Larsen collection # M-550
Samarskite-(Y)
Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Michel Arliguie specimen, photo ID: 883193
Sphalerite
Formula: ZnS
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
'Tapiolite'
Formula: (Fe,Mn)(Ta,Nb)2O6
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Xenotime-(Y)
Formula: Y(PO4)
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Zircon
Formula: Zr(SiO4)
Reference: Besaire, H. (1966): Gites mineraux de Madagascar. Annales Geologique de Madagascar, Tananarive, Fascicule XXXIV, p 60

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Corundum4.CB.05Al2O3
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Goethite4.00.α-Fe3+O(OH)
Ilmenite4.CB.05Fe2+TiO3
Ixiolite4.DB.25(Ta,Nb,Sn,Fe,Mn)4O8
Magnetite4.BB.05Fe2+Fe3+2O4
'Microlite Group'4.00.A2-mTa2X6-wZ-n
Quartz4.DA.05SiO2
var: Agate4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Samarskite-(Y)4.DB.25(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Feldspar Group'-
'var: Perthite'-
'Garnet Group'-X3Z2(SiO4)3
'Orbicular Jasper'-
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tapiolite'-(Fe,Mn)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Ilmenite4.3.5.1Fe2+TiO3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Ixiolite8.1.10.1(Ta,Nb,Sn,Fe,Mn)4O8
Samarskite-(Y)8.1.11.1(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
AB2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
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
Zircon51.5.2.1Zr(SiO4)
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 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Feldspar Group'-
'var: Perthite'-
'Garnet Group'-X3Z2(SiO4)3
'Orbicular Jasper'-
Quartz
var: Agate
-SiO2
var: Amethyst-SiO2
var: Chalcedony-SiO2
var: Jasper-SiO2
var: Smoky Quartz-SiO2
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tapiolite'-(Fe,Mn)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
Xenotime-(Y)-Y(PO4)

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H Goethiteα-Fe3+O(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
O BerylBe3Al2(Si6O18)
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O Tapiolite(Fe,Mn)(Ta,Nb)2O6
O Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
O Xenotime-(Y)Y(PO4)
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O IlmeniteFe2+TiO3
O ZirconZr(SiO4)
O Garnet GroupX3Z2(SiO4)3
O Quartz (var: Chalcedony)SiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O QuartzSiO2
O Quartz (var: Amethyst)SiO2
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O ChromiteFe2+Cr23+O4
O CorundumAl2O3
O Goethiteα-Fe3+O(OH)
O Quartz (var: Smoky Quartz)SiO2
O SpessartineMn32+Al2(SiO4)3
AlAluminium
Al BerylBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al CorundumAl2O3
Al SpessartineMn32+Al2(SiO4)3
SiSilicon
Si BerylBe3Al2(Si6O18)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si ZirconZr(SiO4)
Si Garnet GroupX3Z2(SiO4)3
Si Quartz (var: Chalcedony)SiO2
Si QuartzSiO2
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Smoky Quartz)SiO2
Si SpessartineMn32+Al2(SiO4)3
PPhosphorus
P Xenotime-(Y)Y(PO4)
SSulfur
S SphaleriteZnS
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TiTitanium
Ti IlmeniteFe2+TiO3
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
Mn Tapiolite(Fe,Mn)(Ta,Nb)2O6
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe Tapiolite(Fe,Mn)(Ta,Nb)2O6
Fe Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Fe MagnetiteFe2+Fe23+O4
Fe IlmeniteFe2+TiO3
Fe ChromiteFe2+Cr23+O4
Fe Goethiteα-Fe3+O(OH)
Fe PyriteFeS2
ZnZinc
Zn SphaleriteZnS
YYttrium
Y Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Y Xenotime-(Y)Y(PO4)
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
Nb Tapiolite(Fe,Mn)(Ta,Nb)2O6
Nb Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
Ta Microlite GroupA2-mTa2X6-wZ-n
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
Ta Tapiolite(Fe,Mn)(Ta,Nb)2O6
Ta Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
Th Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
U Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Localities in this Region
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