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Ankazobe District, Analamanga, Madagascari
Regional Level Types
Ankazobe DistrictDistrict
AnalamangaRegion
MadagascarCountry

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Name(s) in local language(s):Distrikan' Ankazobe, Faritr' Analamanga, Faritanin' Antananarivo, Madagasikara
Neighbouring regions:
Locality type:District
Largest Settlements:
PlacePopulation
Ankazobe15,722 (2018)


A large number of beryl-columbite pegmatites, often with a large quantity of gemmy beryl, has been mined for beryl in this area.

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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

20 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:

Albite
Formula: Na(AlSi3O8)
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 22 localities in this region.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
'Biotite'
Bismuthinite
Formula: Bi2S3
Bismutite
Formula: (BiO)2CO3
Chrysoberyl
Formula: BeAl2O4
Chrysoberyl var: Cymophane
Formula: BeAl2O4
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Columbite-(Fe) ?
Formula: Fe2+Nb2O6
'Columbite-(Fe)-Columbite-(Mn) Series'
'Columbite-Tantalite'
Localities: Reported from at least 6 localities in this region.
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Localities: Reported from at least 11 localities in this region.
'Feldspar Group'
'Fergusonite'
Hematite
Formula: Fe2O3
Hematite var: Martite
Formula: Fe2O3
Ilmenite
Formula: Fe2+TiO3
Magnetite
Formula: Fe2+Fe3+2O4
Microcline
Formula: K(AlSi3O8)
Microcline var: Amazonite
Formula: K(AlSi3O8)
'Monazite'
Localities: Reported from at least 9 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)'
Formula: A2-mD2X6-wZ1+w
Quartz
Formula: SiO2
Localities: Reported from at least 10 localities in this region.
Quartz var: Amethyst
Formula: SiO2
Quartz var: Citrine
Formula: SiO2
Quartz var: Rose Quartz
Formula: SiO2
Quartz var: Smoky Quartz
Formula: SiO2
Rutile
Formula: TiO2
Rutile var: Ilmenorutile
Formula: Fex(Nb,Ta)2x · 4Ti1-xO2
Samarskite-(Y)
Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
'Scapolite'
Thortveitite
Formula: Sc2Si2O7
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Xenotime-(Y)
Formula: Y(PO4)
Zircon
Formula: Zr(SiO4)
Zircon var: Malacon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bismuthinite2.DB.05Bi2S3
Group 4 - Oxides and Hydroxides
Chrysoberyl4.BA.05BeAl2O4
var: Cymophane4.BA.05BeAl2O4
Columbite-(Fe) ?4.DB.35Fe2+Nb2O6
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Hematite4.CB.05Fe2O3
var: Martite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Citrine4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
var: Ilmenorutile4.DB.05Fex(Nb,Ta)2x · 4Ti1-xO2
Samarskite-(Y)4.DB.25(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Microcline9.FA.30K(AlSi3O8)
var: Amazonite9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Thortveitite9.BC.05Sc2Si2O7
Zircon9.AD.30Zr(SiO4)
var: Malacon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Biotite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Columbite-Tantalite'-
'Feldspar Group'-
'Fergusonite'-
'Monazite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'var: Betafite (of Hogarth 1977)'-A2-mD2X6-wZ1+w
'Scapolite'-
'Tourmaline'-A(D3)G6(T6O18)(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
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
var: Ilmenorutile4.4.1.2Fex(Nb,Ta)2x · 4Ti1-xO2
Group 7 - MULTIPLE OXIDES
AB2X4
Chrysoberyl7.2.9.1BeAl2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Samarskite-(Y)8.1.11.1(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
A2B2O6(O,OH,F)
'Pyrochlore Supergroup
var: Betafite (of Hogarth 1977)'
8.2.3.1A2-mD2X6-wZ1+w
AB2O6
Columbite-(Fe) ?8.3.2.2Fe2+Nb2O6
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 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
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 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
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)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Albite
var: Cleavelandite
-Na(AlSi3O8)
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Beryl
var: Aquamarine
-Be3Al2Si6O18
'Biotite'-
Chrysoberyl
var: Cymophane
-BeAl2O4
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Columbite-Tantalite'-
'Feldspar Group'-
'Fergusonite'-
Hematite
var: Martite
-Fe2O3
Microcline
var: Amazonite
-K(AlSi3O8)
'Monazite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
Quartz
var: Amethyst
-SiO2
var: Citrine-SiO2
var: Rose Quartz-SiO2
var: Smoky Quartz-SiO2
'Scapolite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
Xenotime-(Y)-Y(PO4)
Zircon
var: Malacon
-Zr(SiO4)

List of minerals for each chemical element

HHydrogen
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H ClinochloreMg5Al(AlSi3O10)(OH)8
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be ChrysoberylBeAl2O4
Be Chrysoberyl (var: Cymophane)BeAl2O4
Be Beryl (var: Aquamarine)Be3Al2Si6O18
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C Bismutite(BiO)2CO3
OOxygen
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O BerylBe3Al2(Si6O18)
O Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
O Xenotime-(Y)Y(PO4)
O ZirconZr(SiO4)
O Quartz (var: Smoky Quartz)SiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O Microcline (var: Amazonite)K(AlSi3O8)
O QuartzSiO2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O Albite (var: Cleavelandite)Na(AlSi3O8)
O Quartz (var: Amethyst)SiO2
O Quartz (var: Citrine)SiO2
O ChrysoberylBeAl2O4
O MagnetiteFe2+Fe23+O4
O AlbiteNa(AlSi3O8)
O Bismutite(BiO)2CO3
O IlmeniteFe2+TiO3
O Hematite (var: Martite)Fe2O3
O Zircon (var: Malacon)Zr(SiO4)
O Chrysoberyl (var: Cymophane)BeAl2O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O Quartz (var: Rose Quartz)SiO2
O Beryl (var: Aquamarine)Be3Al2Si6O18
O Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
O ThortveititeSc2Si2O7
O MicroclineK(AlSi3O8)
O HematiteFe2O3
O RutileTiO2
O Columbite-(Fe)Fe2+Nb2O6
NaSodium
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Microcline (var: Amazonite)K(AlSi3O8)
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al ChrysoberylBeAl2O4
Al AlbiteNa(AlSi3O8)
Al Chrysoberyl (var: Cymophane)BeAl2O4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al MicroclineK(AlSi3O8)
SiSilicon
Si BerylBe3Al2(Si6O18)
Si ZirconZr(SiO4)
Si Quartz (var: Smoky Quartz)SiO2
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si Microcline (var: Amazonite)K(AlSi3O8)
Si QuartzSiO2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Citrine)SiO2
Si AlbiteNa(AlSi3O8)
Si Zircon (var: Malacon)Zr(SiO4)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Quartz (var: Rose Quartz)SiO2
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si ThortveititeSc2Si2O7
Si MicroclineK(AlSi3O8)
PPhosphorus
P Xenotime-(Y)Y(PO4)
P AutuniteCa(UO2)2(PO4)2 · 11H2O
SSulfur
S BismuthiniteBi2S3
KPotassium
K Microcline (var: Amazonite)K(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
CaCalcium
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ca Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ca AutuniteCa(UO2)2(PO4)2 · 11H2O
ScScandium
Sc ThortveititeSc2Si2O7
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti IlmeniteFe2+TiO3
Ti Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Ti RutileTiO2
FeIron
Fe Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Fe MagnetiteFe2+Fe23+O4
Fe IlmeniteFe2+TiO3
Fe Hematite (var: Martite)Fe2O3
Fe Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Fe HematiteFe2O3
Fe Columbite-(Fe)Fe2+Nb2O6
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Y Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr ZirconZr(SiO4)
Zr Zircon (var: Malacon)Zr(SiO4)
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nb Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Nb Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Nb Columbite-(Fe)Fe2+Nb2O6
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ta Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ta Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
BiBismuth
Bi BismuthiniteBi2S3
Bi Bismutite(BiO)2CO3
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Th Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
UUranium
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
U Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
U AutuniteCa(UO2)2(PO4)2 · 11H2O

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Pezzotta, F. (1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17, p.44-46 [in german, short notice]

Localities in this Region
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