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Ampasibitika, Antsirabe, Ambanja, Diana, Madagascari
Regional Level Types
AmpasibitikaExploration Area
AntsirabeCommune
AmbanjaDistrict
DianaRegion
MadagascarCountry

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Latitude & Longitude (WGS84):
13° 47' 23'' South , 48° 12' 32'' East
Latitude & Longitude (decimal):
-13.79000,48.20889
GeoHash:
G#: mjd3918ek
GRN:
S10E33
Type:
Exploration Area
Age:
24.2 ± 0.6 Ma
Geologic Time:
Oligocene
Reference for age:
Estrade, G., B
Köppen climate type:
Am : Tropical monsoon climate
Nearest Settlements:
PlacePopulationDistance
Ambanja30,621 (2018)29.6km
Hell-Ville22,680 (2018)44.1km
Antafondro200 (2018)45.2km
Mindat Locality ID:
73116
Long-form identifier:
mindat:1:2:73116:7
GUID (UUID V4):
388ef025-bf04-47ad-a503-8a83cb455337
Other/historical names associated with this locality:
Ampasindava Peninsula (Saikanosin' Ampasindava)
Name(s) in local language(s):
Ampasibitika (Ampasibitika prospect), Kaominin' Antsirabe, Distrikan' Ambanja, Faritr'i Diana, Faritanin' Antsiranana, Madagasikara


The Ampasibitika Intrusion, located around the village of Ampasibitika at the southeastern coast of the Ampasindava peninsula in the northwestern part of Madagascar, is a part of the Cenozoic Ambohimirahavavy alkaline complex (Estrade et al., 2014). The intrusion consists of peralkaline granitic dikes (fasibitikite) intruding mudstone and limestone of the mesozoic Isalo Group.

Most of the minerals listed are found in dikes peralkaline granite of different variation, the most known is a rare-metal taxitic or foliated aegirine-riebeckite granite, a rock A. Lacroix (1922) named "fasibitikite".

A Russian funded Soviet Geological Mission was prospecting in the area between 1988 and 1991 ("Ampasibitika prospect").
Around 2011-2014 (?) the Ampasibitika Intrusion was explored by the Tantalus Rare Earths AG.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


53 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
ⓘ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Bastnäsite-(Ce)
Formula: Ce(CO3)F
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Britholite-(Ce)
Formula: (Ce,Ca)5(SiO4)3OH
ⓘ Calcite
Formula: CaCO3
ⓘ Cassiterite
Formula: SnO2
ⓘ Cerite-(CeCa)
Formula: (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
ⓘ 'Chabazite'
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chevkinite-(Ce)
Formula: Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
ⓘ Digenite
Formula: Cu9S5
References:
Wolfgang Hampel
ⓘ Eckermannite ?
Formula: NaNa2(Mg4Al}Si8O22(OH)2
Description: Need to be checked if it can be assigned to eckermannite according to the redefinition by IMA (IMA2013-136).
ⓘ Eudialyte
Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘ Fergusonite-(Y)
Formula: YNbO4
ⓘ Ferriallanite-(Ce)
Formula: (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
ⓘ Ferricerite-(LaCa)
Formula: (La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
ⓘ 'Ferro-eckermannite'
Formula: NaNa2(Fe2+4Al)Si8O22(OH)2
ⓘ Ferro-ferri-fluoro-leakeite
Formula: Na(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2
ⓘ Fluorcalciopyrochlore
Formula: (Ca,Na)2(Nb, Ti)2O6F
ⓘ Fluorite
Formula: CaF2
ⓘ Fluornatropyrochlore
Formula: (Na,Pb,Ca,REE,U)2Nb2O6F
ⓘ 'Gagarinite'
ⓘ Galena
Formula: PbS
ⓘ Gittinsite
Formula: CaZrSi2O7
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
ⓘ Hematite
Formula: Fe2O3
ⓘ Hematite var. Martite
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
References:
Wolfgang Hampel
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ 'Leucoxene'
ⓘ Maghemite
Formula: (Fe3+0.67◻0.33)Fe3+2O4
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Marcasite
Formula: FeS2
ⓘ 'Microlite Group'
Formula: A2-mTa2X6-wZ-n
ⓘ Monazite-(Ce)
Formula: Ce(PO4)
ⓘ Nacareniobsite-(Ce)
Formula: Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Parisite-(Ce)
Formula: CaCe2(CO3)3F2
ⓘ Pectolite
Formula: NaCa2Si3O8(OH)
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
ⓘ 'Pyrochlore Group var. Yttropyrochlore (of Hogarth 1977)'
Formula: A2Nb2(O,OH)6Z
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Samarskite-(Y)
Formula: YFe3+Nb2O8
ⓘ Siderite
Formula: FeCO3
References:
Wolfgang Hampel
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Steacyite Group'
ⓘ Stellerite
Formula: Ca4(Si28Al8)O72 · 28H2O
ⓘ Synchysite-(Ce)
Formula: CaCe(CO3)2F
ⓘ Thorite
Formula: Th(SiO4)
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Turkestanite
Formula: (K,◻)(Ca,Na)2ThSi8O20 · nH2O
ⓘ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
ⓘ Wollastonite
Formula: Ca3(Si3O9)
ⓘ 'Xenotime'
ⓘ Zektzerite
Formula: LiNaZrSi6O15
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2ⓘ Eudialyte
FeS2ⓘ Pyrite
Zr(SiO4)ⓘ Zircon

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘDigenite2.BA.10Cu9S5
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘ'Microlite Group'4.00.A2-mTa2X6-wZ-n
ⓘ'Pyrochlore Group
var. Yttropyrochlore (of Hogarth 1977)'		4.00.A2Nb2(O,OH)6Z
ⓘ''4.00.A2Nb2(O,OH)6Z
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘMaghemite4.BB.15(Fe3+0.67◻0.33)Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘHematite
var. Martite		4.CB.05Fe2O3
ⓘCassiterite4.DB.05SnO2
ⓘSamarskite-(Y)4.DB.25YFe3+Nb2O8
ⓘFluornatropyrochlore4.DH.(Na,Pb,Ca,REE,U)2Nb2O6F
ⓘFluorcalciopyrochlore4.DH.15(Ca,Na)2(Nb, Ti)2O6F
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘBastnäsite-(Ce)5.BD.20aCe(CO3)F
ⓘParisite-(Ce)5.BD.20bCaCe2(CO3)3F2
ⓘSynchysite-(Ce)5.BD.20cCaCe(CO3)2F
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘFergusonite-(Y)7.GA.05YNbO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMonazite-(Ce)8.AD.50Ce(PO4)
Group 9 - Silicates
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘThorite9.AD.30Th(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘFerricerite-(LaCa)9.AG.20(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
ⓘCerite-(CeCa)9.AG.20(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
ⓘBritholite-(Ce)9.AH.25(Ce,Ca)5(SiO4)3OH
ⓘGittinsite9.BC.05CaZrSi2O7
ⓘNacareniobsite-(Ce)9.BE.20Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
ⓘChevkinite-(Ce)9.BE.70Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
ⓘFerriallanite-(Ce)9.BG.05b(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
ⓘVesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
ⓘTurkestanite9.CH.10(K,◻)(Ca,Na)2ThSi8O20 · nH2O
ⓘEudialyte9.CO.10Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘArfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘEckermannite ?9.DE.25NaNa2(Mg4Al}Si8O22(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘFerro-ferri-fluoro-leakeite9.DE.25Na(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2
ⓘ'Ferro-eckermannite'9.DE.25NaNa2(Fe2+4Al)Si8O22(OH)2
ⓘPectolite9.DG.05NaCa2Si3O8(OH)
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘAenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
ⓘZektzerite9.DN.05LiNaZrSi6O15
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
ⓘStellerite9.GE.15Ca4(Si28Al8)O72 · 28H2O
Unclassified
ⓘ'Chabazite'-
ⓘ'Steacyite Group'-
ⓘ'Xenotime'-
ⓘ'Leucoxene'-
ⓘ'Gagarinite'-

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Hⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Hⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Hⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Hⓘ Ferro-eckermanniteNaNa2(Fe42+Al)Si8O22(OH)2
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ PectoliteNaCa2Si3O8(OH)
Hⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Hⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hⓘ Pyrochlore Group var. Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
Hⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
Hⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
Hⓘ Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
LiLithium
Liⓘ ZektzeriteLiNaZrSi6O15
Liⓘ Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
CCarbon
Cⓘ Bastnäsite-(Ce)Ce(CO3)F
Cⓘ CalciteCaCO3
Cⓘ Parisite-(Ce)CaCe2(CO3)3F2
Cⓘ SideriteFeCO3
Cⓘ Synchysite-(Ce)CaCe(CO3)2F
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ Bastnäsite-(Ce)Ce(CO3)F
Oⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Oⓘ CalciteCaCO3
Oⓘ CassiteriteSnO2
Oⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Oⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Oⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Oⓘ Ferro-eckermanniteNaNa2(Fe42+Al)Si8O22(OH)2
Oⓘ Fergusonite-(Y)YNbO4
Oⓘ GittinsiteCaZrSi2O7
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ HematiteFe2O3
Oⓘ IlmeniteFe2+TiO3
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Hematite var. MartiteFe2O3
Oⓘ Monazite-(Ce)Ce(PO4)
Oⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ Parisite-(Ce)CaCe2(CO3)3F2
Oⓘ PectoliteNaCa2Si3O8(OH)
Oⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ Samarskite-(Y)YFe3+Nb2O8
Oⓘ SideriteFeCO3
Oⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Oⓘ Synchysite-(Ce)CaCe(CO3)2F
Oⓘ ThoriteTh(SiO4)
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Pyrochlore Group var. Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
Oⓘ ZektzeriteLiNaZrSi6O15
Oⓘ ZirconZr(SiO4)
Oⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Oⓘ Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
Oⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
Oⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
Oⓘ Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
Oⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F
Oⓘ Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6F
FFluorine
Fⓘ Bastnäsite-(Ce)Ce(CO3)F
Fⓘ FluoriteCaF2
Fⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Fⓘ Parisite-(Ce)CaCe2(CO3)3F2
Fⓘ Synchysite-(Ce)CaCe(CO3)2F
Fⓘ Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
Fⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F
Fⓘ Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6F
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Naⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Naⓘ Ferro-eckermanniteNaNa2(Fe42+Al)Si8O22(OH)2
Naⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ PectoliteNaCa2Si3O8(OH)
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ ZektzeriteLiNaZrSi6O15
Naⓘ Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
Naⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
Naⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F
Naⓘ Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6F
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Mgⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Mgⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Alⓘ Ferro-eckermanniteNaNa2(Fe42+Al)Si8O22(OH)2
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Alⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Alⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Siⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Siⓘ EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
Siⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Siⓘ Ferro-eckermanniteNaNa2(Fe42+Al)Si8O22(OH)2
Siⓘ GittinsiteCaZrSi2O7
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ PectoliteNaCa2Si3O8(OH)
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Siⓘ ThoriteTh(SiO4)
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ ZektzeriteLiNaZrSi6O15
Siⓘ ZirconZr(SiO4)
Siⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Siⓘ Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
Siⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
Siⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
Siⓘ Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
PPhosphorus
Pⓘ Monazite-(Ce)Ce(PO4)
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ DigeniteCu9S5
Sⓘ GalenaPbS
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
ClChlorine
Clⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
KPotassium
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
CaCalcium
Caⓘ AndraditeCa3Fe23+(SiO4)3
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Caⓘ CalciteCaCO3
Caⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Caⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Caⓘ FluoriteCaF2
Caⓘ GittinsiteCaZrSi2O7
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Caⓘ Parisite-(Ce)CaCe2(CO3)3F2
Caⓘ PectoliteNaCa2Si3O8(OH)
Caⓘ StelleriteCa4(Si28Al8)O72 · 28H2O
Caⓘ Synchysite-(Ce)CaCe(CO3)2F
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
Caⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
Caⓘ Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
Caⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F
Caⓘ Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6F
TiTitanium
Tiⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Tiⓘ Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6F
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feⓘ Ferro-eckermanniteNaNa2(Fe42+Al)Si8O22(OH)2
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ Hematite var. MartiteFe2O3
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ Samarskite-(Y)YFe3+Nb2O8
Feⓘ SideriteFeCO3
Feⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Feⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Feⓘ Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
Feⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
Feⓘ Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ DigeniteCu9S5
ZnZinc
Znⓘ SphaleriteZnS
YYttrium
Yⓘ Fergusonite-(Y)YNbO4
Yⓘ Samarskite-(Y)YFe3+Nb2O8
ZrZirconium
Zrⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Zrⓘ GittinsiteCaZrSi2O7
Zrⓘ ZektzeriteLiNaZrSi6O15
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Fergusonite-(Y)YNbO4
Nbⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Nbⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Nbⓘ Samarskite-(Y)YFe3+Nb2O8
Nbⓘ Pyrochlore Group var. Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
Nbⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F
Nbⓘ Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6F
SnTin
Snⓘ CassiteriteSnO2
LaLanthanum
Laⓘ Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
CeCerium
Ceⓘ Bastnäsite-(Ce)Ce(CO3)F
Ceⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Ceⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Ceⓘ Monazite-(Ce)Ce(PO4)
Ceⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Ceⓘ Parisite-(Ce)CaCe2(CO3)3F2
Ceⓘ Synchysite-(Ce)CaCe(CO3)2F
Ceⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Ceⓘ Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)
TaTantalum
Taⓘ Microlite GroupA2-mTa2X6-wZ-n
PbLead
Pbⓘ GalenaPbS
Pbⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F
ThThorium
Thⓘ ThoriteTh(SiO4)
Thⓘ Turkestanite(K,◻)(Ca,Na)2ThSi8O20 · nH2O
UUranium
Uⓘ Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6F

Geochronology

Mineralization age: Oligocene : 24.2 ± 0.6 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Paleogene
   Oligocene
ⓘ Nepheline-syenite24.2 ± 0.6 Ma

Other Regions, Features and Areas containing this locality

African Plate
Madagascar
Somali PlateTectonic Plate

This page 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. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Lacroix, Alfred (1922) Minéralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. Augustin Challamel, Paris. p.1-624. pp.589-590
Behier, Jean (1963) Carte minéralogique de Madagascar. Archive Service Géologique de Madagascar A.1871
Ganzeev, A.A., Grechishchev, O.K. (2003) A new genetic type of rare-metal alkali granites of Madagascar. Russian Geology and Geophysics, 44 (6) 539-553
Gilbertson, J. (2011) Private report for Tantalus Rare Earths. Tantalus Rare Earths.
Estrade, Guillaume, Salvi, Stefano, Béziat, Didier, Rakotovao, Soatsitohaina, Rakotondrazafy, Raymond (2014) REE and HFSE mineralization in peralkaline granites of the Ambohimirahavavy alkaline complex, Ampasindava peninsula, Madagascar. Journal of African Earth Sciences, 94. 141-155 doi:10.1016/j.jafrearsci.2013.06.008
Estrade, Guillaume (2014) Le complexe cénozoïque alcalin d’Ambohimirahavavy à Madagascar: origine, évolution et minéralisations en métaux rares, Doctoral dissertation, Université Toulouse 3 Paul Sabatier.
Estrade, Guillaume, Béziat, Didier, Salvi, Stefano, Tiepolo, Massimo, Paquette, Jean-Louis, Rakotovao, Soatsitohaina (2014) Unusual evolution of silica-under- and -oversaturated alkaline rocks in the Cenozoic Ambohimirahavavy Complex (Madagascar): Mineralogical and geochemical evidence. Lithos, 206. 361-383 doi:10.1016/j.lithos.2014.08.008
Estrade, Guillaume, Salvi, Stefano, Béziat, Didier, Williams-Jones, Anthony E. (2015) The Origin of Skarn-Hosted Rare-Metal Mineralization in the Ambohimirahavavy Alkaline Complex, Madagascar. Economic Geology, 110 (6) 1485-1513 doi:10.2113/econgeo.110.6.1485
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