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Imorona valley, Itremo, Ambatofinandrahana District, Amoron'i Mania, Madagascari
Regional Level Types
Imorona valleyValley
ItremoCommune
Ambatofinandrahana DistrictDistrict
Amoron'i ManiaRegion
MadagascarCountry

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Type:
Mindat Locality ID:
133056
Long-form identifier:
mindat:1:2:133056:7
GUID (UUID V4):
0
Other Languages:
Malagasy:
Lohasahan' Imorona, Kaominin' Itremo, Distrikan' Ambatofinandrahana, Faritra Amoron'i Mania, Madagasikara


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Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

28 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

โ“˜ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
โ“˜ Aegirine
Formula: NaFe3+Si2O6
โ“˜ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
โ“˜ 'Apatite'
Formula: Ca5(PO4)3A
โ“˜ Baryte
Formula: BaSO4
โ“˜ 'Bastnรคsite'
Formula: (Ce/Nd/Y/REE)(CO3)F
Description: Occurs in a contact zone with pegmatitic facies of an alkali-granite.
โ“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜ Chalcopyrite
Formula: CuFeS2
โ“˜ 'Chevkinite Group'
โ“˜ 'Chlorite Group'
โ“˜ Chromite
Formula: Fe2+Cr3+2O4
โ“˜ 'Clinopyroxene Subgroup'
โ“˜ Cobaltite
Formula: CoAsS
โ“˜ Crichtonite
Formula: Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
โ“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜ Gersdorffite
Formula: NiAsS
โ“˜ Glaucophane
Formula: ◻Na2(Mg3Al2)Si8O22(OH)2
โ“˜ Graphite
Formula: C
โ“˜ Hematite
Formula: Fe2O3
โ“˜ Ilmenite
Formula: Fe2+TiO3
โ“˜ Magnesio-riebeckite
Formula: ◻Na2(Mg3Fe3+2)(Si8O22)(OH)2
Description: described as Torendrikite
โ“˜ Magnetite
Formula: Fe2+Fe3+2O4
โ“˜ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
โ“˜ Molybdenite
Formula: MoS2
โ“˜ 'Olivine Group'
Formula: M2SiO4
โ“˜ 'Orthochevkinite'
Formula: (Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
โ“˜ 'Parisite'
Formula: Ca(Ce/La/Nd/REE)2(CO3)3F2
โ“˜ Parisite-(Ce)
Formula: CaCe2(CO3)3F2
โ“˜ Pentlandite
Formula: (NixFey)ฮฃ9S8
โ“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
โ“˜ 'Psilomelane'
โ“˜ Pyrite
Formula: FeS2
โ“˜ Pyrrhotite
Formula: Fe1-xS
โ“˜ Quartz
Formula: SiO2
โ“˜ Quartz var. Amethyst
Formula: SiO2
โ“˜ Quartz var. Chalcedony
Formula: SiO2
โ“˜ Rheniite
Formula: ReS2
โ“˜ Rutile
Formula: TiO2
Description: In alterationproducts after chevkinite or bastnรคsite
โ“˜ Sphalerite
Formula: ZnS
โ“˜ Spinel
Formula: MgAl2O4
โ“˜ Titanite
Formula: CaTiO(SiO4)
โ“˜ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
โ“˜ Tschermakite
Formula: ◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
โ“˜Pentlandite2.BB.15(NixFey)ฮฃ9S8
โ“˜Sphalerite2.CB.05aZnS
โ“˜Chalcopyrite2.CB.10aCuFeS2
โ“˜Pyrrhotite2.CC.10Fe1-xS
โ“˜Molybdenite2.EA.30MoS2
โ“˜Pyrite2.EB.05aFeS2
โ“˜Cobaltite2.EB.25CoAsS
โ“˜Gersdorffite2.EB.25NiAsS
โ“˜Rheniite2.EB.35ReS2
Group 4 - Oxides and Hydroxides
โ“˜Chromite4.BB.05Fe2+Cr3+2O4
โ“˜Magnetite4.BB.05Fe2+Fe3+2O4
โ“˜Spinel4.BB.05MgAl2O4
โ“˜Magnetite
var. Titanium-bearing Magnetite
4.BB.05Fe2+(Fe3+,Ti)2O4
โ“˜Hematite4.CB.05Fe2O3
โ“˜Ilmenite4.CB.05Fe2+TiO3
โ“˜Crichtonite4.CC.40Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
โ“˜Quartz
var. Amethyst
4.DA.05SiO2
โ“˜var. Chalcedony4.DA.05SiO2
โ“˜4.DA.05SiO2
โ“˜Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
โ“˜Parisite-(Ce)5.BD.20bCaCe2(CO3)3F2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Baryte7.AD.35BaSO4
Group 9 - Silicates
โ“˜Titanite9.AG.15CaTiO(SiO4)
โ“˜'Orthochevkinite'9.BE.62(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
โ“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
โ“˜Aegirine9.DA.25NaFe3+Si2O6
โ“˜Actinolite9.DE.10โ—ปCa2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
โ“˜Tremolite9.DE.10โ—ปCa2Mg5(Si8O22)(OH)2
โ“˜Tschermakite9.DE.10โ—ปCa2(Mg3Al2)(Al2Si6O22)(OH)2
โ“˜Glaucophane9.DE.25โ—ปNa2(Mg3Al2)Si8O22(OH)2
โ“˜Magnesio-riebeckite9.DE.25โ—ปNa2(Mg3Fe3+2)(Si8O22)(OH)2
Unclassified
โ“˜'Amphibole Supergroup'-AB2C5(T8O22)W2
โ“˜'Bastnรคsite'-(Ce/Nd/Y/REE)(CO3)F
โ“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜'Chlorite Group'-
โ“˜'Psilomelane'-
โ“˜'Parisite'-Ca(Ce/La/Nd/REE)2(CO3)3F2
โ“˜'Clinopyroxene Subgroup'-
โ“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
โ“˜'Apatite'-Ca5(PO4)3A
โ“˜'Olivine Group'-M2SiO4
โ“˜'Chevkinite Group'-

List of minerals for each chemical element

HHydrogen
Hโ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Hโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hโ“˜ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Hโ“˜ Magnesio-riebeckite◻Na2(Mg3Fe23+)(Si8O22)(OH)2
Hโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hโ“˜ Tschermakite◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2
CCarbon
Cโ“˜ Bastnรคsite(Ce/Nd/Y/REE)(CO3)F
Cโ“˜ GraphiteC
Cโ“˜ Parisite-(Ce)CaCe2(CO3)3F2
Cโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
OOxygen
Oโ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oโ“˜ AegirineNaFe3+Si2O6
Oโ“˜ Quartz var. AmethystSiO2
Oโ“˜ Amphibole SupergroupAB2C5(T8O22)W2
Oโ“˜ BaryteBaSO4
Oโ“˜ Bastnรคsite(Ce/Nd/Y/REE)(CO3)F
Oโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oโ“˜ Quartz var. ChalcedonySiO2
Oโ“˜ ChromiteFe2+Cr23+O4
Oโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Oโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oโ“˜ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Oโ“˜ HematiteFe2O3
Oโ“˜ IlmeniteFe2+TiO3
Oโ“˜ Magnesio-riebeckite◻Na2(Mg3Fe23+)(Si8O22)(OH)2
Oโ“˜ MagnetiteFe2+Fe23+O4
Oโ“˜ Parisite-(Ce)CaCe2(CO3)3F2
Oโ“˜ QuartzSiO2
Oโ“˜ RutileTiO2
Oโ“˜ SpinelMgAl2O4
Oโ“˜ TitaniteCaTiO(SiO4)
Oโ“˜ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oโ“˜ Tschermakite◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2
Oโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Oโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Oโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oโ“˜ ApatiteCa5(PO4)3A
Oโ“˜ Olivine GroupM2SiO4
FFluorine
Fโ“˜ Bastnรคsite(Ce/Nd/Y/REE)(CO3)F
Fโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fโ“˜ Parisite-(Ce)CaCe2(CO3)3F2
Fโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
NaSodium
Naโ“˜ AegirineNaFe3+Si2O6
Naโ“˜ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Naโ“˜ Magnesio-riebeckite◻Na2(Mg3Fe23+)(Si8O22)(OH)2
Naโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Naโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgโ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgโ“˜ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Mgโ“˜ Magnesio-riebeckite◻Na2(Mg3Fe23+)(Si8O22)(OH)2
Mgโ“˜ SpinelMgAl2O4
Mgโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgโ“˜ Tschermakite◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2
Mgโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
AlAluminium
Alโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alโ“˜ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Alโ“˜ SpinelMgAl2O4
Alโ“˜ Tschermakite◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2
Alโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siโ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siโ“˜ AegirineNaFe3+Si2O6
Siโ“˜ Quartz var. AmethystSiO2
Siโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siโ“˜ Quartz var. ChalcedonySiO2
Siโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siโ“˜ Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Siโ“˜ Magnesio-riebeckite◻Na2(Mg3Fe23+)(Si8O22)(OH)2
Siโ“˜ QuartzSiO2
Siโ“˜ TitaniteCaTiO(SiO4)
Siโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siโ“˜ Tschermakite◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2
Siโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Siโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siโ“˜ Olivine GroupM2SiO4
PPhosphorus
Pโ“˜ ApatiteCa5(PO4)3A
SSulfur
Sโ“˜ BaryteBaSO4
Sโ“˜ ChalcopyriteCuFeS2
Sโ“˜ CobaltiteCoAsS
Sโ“˜ GersdorffiteNiAsS
Sโ“˜ MolybdeniteMoS2
Sโ“˜ Pentlandite(NixFey)ฮฃ9S8
Sโ“˜ PyriteFeS2
Sโ“˜ PyrrhotiteFe1-xS
Sโ“˜ SphaleriteZnS
Sโ“˜ RheniiteReS2
KPotassium
Kโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caโ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caโ“˜ Parisite-(Ce)CaCe2(CO3)3F2
Caโ“˜ TitaniteCaTiO(SiO4)
Caโ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caโ“˜ Tschermakite◻Ca2(Mg3Al2)(Al2Si6O22)(OH)2
Caโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Caโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Caโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caโ“˜ ApatiteCa5(PO4)3A
TiTitanium
Tiโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Tiโ“˜ IlmeniteFe2+TiO3
Tiโ“˜ RutileTiO2
Tiโ“˜ TitaniteCaTiO(SiO4)
Tiโ“˜ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Tiโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
VVanadium
Vโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
CrChromium
Crโ“˜ ChromiteFe2+Cr23+O4
Crโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
MnManganese
Mnโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
FeIron
Feโ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feโ“˜ AegirineNaFe3+Si2O6
Feโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feโ“˜ ChalcopyriteCuFeS2
Feโ“˜ ChromiteFe2+Cr23+O4
Feโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Feโ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feโ“˜ HematiteFe2O3
Feโ“˜ IlmeniteFe2+TiO3
Feโ“˜ Magnesio-riebeckite◻Na2(Mg3Fe23+)(Si8O22)(OH)2
Feโ“˜ MagnetiteFe2+Fe23+O4
Feโ“˜ Pentlandite(NixFey)ฮฃ9S8
Feโ“˜ PyriteFeS2
Feโ“˜ PyrrhotiteFe1-xS
Feโ“˜ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
CoCobalt
Coโ“˜ CobaltiteCoAsS
NiNickel
Niโ“˜ GersdorffiteNiAsS
Niโ“˜ Pentlandite(NixFey)ฮฃ9S8
CuCopper
Cuโ“˜ ChalcopyriteCuFeS2
ZnZinc
Znโ“˜ SphaleriteZnS
AsArsenic
Asโ“˜ CobaltiteCoAsS
Asโ“˜ GersdorffiteNiAsS
SrStrontium
Srโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
YYttrium
Yโ“˜ Bastnรคsite(Ce/Nd/Y/REE)(CO3)F
Yโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
MoMolybdenum
Moโ“˜ MolybdeniteMoS2
BaBarium
Baโ“˜ BaryteBaSO4
LaLanthanum
Laโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Laโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
CeCerium
Ceโ“˜ Bastnรคsite(Ce/Nd/Y/REE)(CO3)F
Ceโ“˜ Parisite-(Ce)CaCe2(CO3)3F2
Ceโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
Ceโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
NdNeodymium
Ndโ“˜ Bastnรคsite(Ce/Nd/Y/REE)(CO3)F
Ndโ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
ReRhenium
Reโ“˜ RheniiteReS2
ThThorium
Thโ“˜ Orthochevkinite(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22
UUranium
Uโ“˜ CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38

Geochronology

Mineralization age: Neoproterozoic : 800 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
Precambrian
 Proterozoic
  Neoproterozoic
   Tonian
โ“˜ Orthogneiss800 Ma

Localities in this Region

Other Regions, Features and Areas containing this locality

Madagascar
Somali PlateTectonic Plate

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