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Tranomaro-Maromby area, Amboasary Sud District, Anosy, Madagascari
Regional Level Types
Tranomaro-Maromby areaMineral Occurrence Area
Amboasary Sud DistrictDistrict
AnosyRegion
MadagascarCountry

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PhotosSearchMineralogy
Latitude & Longitude (WGS84):
24° South , 46° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~22km
Köppen climate type:
Mindat Locality ID:
2275
Long-form identifier:
mindat:1:2:2275:3
GUID (UUID V4):
0
Other Languages:
Malagasy:
Tranomaro-Maromby, Distrikan' Amboasary Atsimo, Faritr' Anosy, Madagasikara


Mineral specimens found in one of the numerous localities in the area north of Amboasary, especially in the communes of Tranomaro and Maromby, lacking specific locality data, have often been erroneously or incompletely labeled just "Tranomaro" or "Tranomaro area" since Tranomaro is a center in this area.

Please see the entry for either Tranomaro commune or the Maromby commune for the different localities.

A new find of grandidierite from an undisclosed locality in the Tranomaro area was made in 2015 (Vertriest et al., 2015); for further information, see Unnamed grandidierite deposit.

Select Mineral List Type

Standard Detailed Gallery Strunz 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

57 valid minerals. 2 (TL) - type locality of 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:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
ⓘ 'Alkali Feldspar'
ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Habit: large irregular prismatic crystals
Description: Covered by iron hydroxides
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
References:
ⓘ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
ⓘ Anhydrite
Formula: CaSO4
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
Localities: Reported from at least 10 localities in this region.
ⓘ Anorthite var. Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
Localities: Reported from at least 7 localities in this region.
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Augite var. Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Baddeleyite
Formula: ZrO2
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: In gneiss
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
Localities: Reported from at least 20 localities in this region.
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ 'Clinopyroxene Subgroup'
ⓘ Cordierite
Formula: Mg2Al4Si5O18
ⓘ Corundum
Formula: Al2O3
Localities: Reported from at least 14 localities in this region.
ⓘ Corundum var. Ruby
Formula: Al2O3
ⓘ Corundum var. Sapphire
Formula: Al2O3
ⓘ Covellite
Formula: CuS
ⓘ Diaspore
Formula: AlO(OH)
ⓘ Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 15 localities in this region.
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ 'Elbaite-Liddicoatite Series'
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ 'Feldspar Group'
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Fluorite
Formula: CaF2
ⓘ Fluorophlogopite
Formula: KMg3(Si3Al)O10F2
ⓘ Forsterite
Formula: Mg2(SiO4)
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Grandidierite
Formula: (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
Colour: greenish brown
Description: As grains as inclusions in sapphire
ⓘ Hibonite (TL)
Formula: CaAl12O19
Localities: Reported from at least 16 localities in this region.
Description: per correspondence with Knut Edvard: The TL produced just a few specimens in the year of discovery (also an eluvial locality ). When lacking exact locality data the Madagascar hibonite specimens are often erroneously labeled and sold as coming from Esiva, often being the only locality referred to in textbooks.
ⓘ Humite ?
Formula: Mg7(SiO4)3F2
Description: A Humite group mineral found i marbles were visually identified as Humite. It is impossible by visual means only to distinguish between different members of the Humite Farouk. Analyzed Humite group minerals from the same area is identified by xrd as clinohumite.
ⓘ 'Humite Group'
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ 'K Feldspar'
ⓘ 'Lepidolite'
ⓘ Liddicoatite ?
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Colour: bluish, black
Description: Bluish portion close to the antilogious pole is by quantitative WDS-microprobe chemical analyses (Pezzotta & Jobin 2003, Pezzotta (2004) showed to be "liddicoatite" s.l. with a high content of Ca. Also the blackish termination of an opaque crystal was "liddicoatite", s.l.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Meionite
Formula: Ca4Al6Si6O24CO3
ⓘ 'Mica Group'
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Microcline var. Amazonite
Formula: K(AlSi3O8)
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Mottramite
Formula: PbCu(VO4)(OH)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Osumilite
Formula: K◻2Fe2+2Al3[Al2Si10O30]
ⓘ Pargasite
Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Localities: Reported from at least 27 localities in this region.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Localities: Reported from at least 7 localities in this region.
ⓘ Potassic-fluoro-pargasite (TL)
Formula: KCa2(Mg4Al)(Si6Al2)O22F2
Type Locality:
ⓘ 'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Habit: Small octahedrons up to 2 mm across
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Quartz var. Smoky Quartz
Formula: SiO2
ⓘ Rhodizite
Formula: KBe4Al4(B11Be)O28
ⓘ Richterite ?
Formula: Na(CaNa)Mg5(Si8O22)(OH)2
Description: Probably erronously identified. Pargasites are well-known in the skarns in this area
ⓘ Rossmanite ?
Formula: ◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Colour: Pinkis
Description: Analyzed pinkish portions of a low alkali-deficient tourmaline, with Fe og Mg close to zero in concentration, could according to Pezzotta (2004) be regarded as a rossmanite, but he also points to compositional problems with the tourmaline.
ⓘ Rutile
Formula: TiO2
Description: As microscopic inclusions in sapphire as oriented needlelike crystals
ⓘ Sapphirine
Formula: Mg4(Mg3Al9)O4[Si3Al9O36]
ⓘ 'Scapolite'
Localities: Reported from at least 23 localities in this region.
ⓘ 'Scapolite var. Wernerite'
Localities: Reported from at least 13 localities in this region.
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
Colour: yellow
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Spinel
Formula: MgAl2O4
Localities: Reported from at least 24 localities in this region.
ⓘ 'Spinel Subgroup'
Formula: A2+D3+2O4
ⓘ Thorianite
Formula: ThO2
Localities: Reported from at least 41 localities in this region.
Habit: cubes
Description: Unusually large crystals (Up to several centimeters!). Exceptional specimen in École des mines, Paris 9 x 9 cm, year 1962 [see Bancroft, Peter (1973) The World's Finest Minerals and Crystals].
ⓘ Thorianite var. Uranothorianite
Formula: (Th,U)O2
Localities: Reported from at least 6 localities in this region.
ⓘ Thorite
Formula: Th(SiO4)
Localities: Reported from at least 10 localities in this region.
ⓘ Thorite var. Orangite
Formula: Th(SiO4)
ⓘ Thorite var. Thorogummite
Formula: (Th,U)(SiO4)1-x(OH)4x
Localities: Reported from at least 8 localities in this region.
ⓘ Titanite
Formula: CaTiO(SiO4)
Localities: Reported from at least 13 localities in this region.
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
Description: Many crystal have a characteristical bluish color close to the antilogous termination (Pezzotta 2004)
ⓘ 'Tourmaline var. Indicolite'
ⓘ Wollastonite
Formula: Ca3(Si3O9)
ⓘ Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 9 localities in this region.
ⓘ Zirconolite
Formula: CaZrTi2O7

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘChalcopyrite2.CB.10aCuFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘCorundum4.CB.05Al2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘCorundum
var. Ruby
4.CB.05Al2O3
ⓘvar. Sapphire4.CB.05Al2O3
ⓘHibonite (TL)4.CC.45CaAl12O19
ⓘQuartz
var. Chalcedony
4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
ⓘBaddeleyite4.DE.35ZrO2
ⓘZirconolite4.DH.30CaZrTi2O7
ⓘThorianite4.DL.05ThO2
ⓘvar. Uranothorianite4.DL.05(Th,U)O2
ⓘDiaspore4.FD.10AlO(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 6 - Borates
ⓘRhodizite6.GC.05KBe4Al4(B11Be)O28
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘScheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMottramite8.BH.40PbCu(VO4)(OH)
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2(SiO4)
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘThorite
var. Orangite
9.AD.30Th(SiO4)
ⓘ9.AD.30Th(SiO4)
ⓘvar. Thorogummite9.AD.30(Th,U)(SiO4)1-x(OH)4x
ⓘZircon9.AD.30Zr(SiO4)
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘHumite ?9.AF.50Mg7(SiO4)3F2
ⓘTitanite9.AG.15CaTiO(SiO4)
ⓘGrandidierite9.AJ.05(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘCordierite9.CJ.10Mg2Al4Si5O18
ⓘDravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘLiddicoatite ?9.CK.05Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘRossmanite ?9.CK.05◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘOsumilite9.CM.05K◻2Fe2+2Al3[Al2Si10O30]
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘAugite
var. Fassaite
9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
ⓘPargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
ⓘPotassic-fluoro-pargasite (TL)9.DE.15KCa2(Mg4Al)(Si6Al2)O22F2
ⓘRichterite ?9.DE.20Na(CaNa)Mg5(Si8O22)(OH)2
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘSapphirine9.DH.45Mg4(Mg3Al9)O4[Si3Al9O36]
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘFluorophlogopite9.EC.20KMg3(Si3Al)O10F2
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘMicrocline
var. Amazonite
9.FA.30K(AlSi3O8)
ⓘ9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
ⓘAlbite
var. Cleavelandite
9.FA.35Na(AlSi3O8)
ⓘMeionite9.FB.15Ca4Al6Si6O24CO3
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'Amphibole Supergroup'-AB2C5(T8O22)W2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-
ⓘ'Tourmaline
var. Indicolite'
-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Lepidolite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Scapolite
var. Wernerite'
-
ⓘ'Mica Group'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Scapolite'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'Elbaite-Liddicoatite Series'-
ⓘ'Humite Group'-
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ'Spinel Subgroup'-A2+D3+2O4

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ DiasporeAlO(OH)
Hⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MottramitePbCu(VO4)(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ RichteriteNa(CaNa)Mg5(Si8O22)(OH)2
Hⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Hⓘ Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ Elbaite-Liddicoatite Series
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
LiLithium
Liⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Liⓘ Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Liⓘ Elbaite-Liddicoatite Series
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
Beⓘ RhodiziteKBe4Al4(B11Be)O28
BBoron
Bⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Bⓘ Tourmaline var. Indicolite
Bⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ RhodiziteKBe4Al4(B11Be)O28
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Bⓘ Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ Elbaite-Liddicoatite Series
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ MeioniteCa4Al6Si6O24CO3
Cⓘ Scapolite var. Wernerite
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Microcline var. AmazoniteK(AlSi3O8)
Oⓘ Amphibole SupergroupAB2C5(T8O22)W2
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ AnhydriteCaSO4
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ BaddeleyiteZrO2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ CordieriteMg2Al4Si5O18
Oⓘ CorundumAl2O3
Oⓘ DiasporeAlO(OH)
Oⓘ DiopsideCaMgSi2O6
Oⓘ DolomiteCaMg(CO3)2
Oⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ EnstatiteMg2Si2O6
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ ForsteriteMg2(SiO4)
Oⓘ Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ HiboniteCaAl12O19
Oⓘ HumiteMg7(SiO4)3F2
Oⓘ IlmeniteFe2+TiO3
Oⓘ Tourmaline var. Indicolite
Oⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MeioniteCa4Al6Si6O24CO3
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Monazite GroupREE(PO4)
Oⓘ MottramitePbCu(VO4)(OH)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Thorite var. OrangiteTh(SiO4)
Oⓘ OsumiliteK◻2Fe22+Al3[Al2Si10O30]
Oⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RhodiziteKBe4Al4(B11Be)O28
Oⓘ RichteriteNa(CaNa)Mg5(Si8O22)(OH)2
Oⓘ Corundum var. RubyAl2O3
Oⓘ RutileTiO2
Oⓘ Corundum var. SapphireAl2O3
Oⓘ SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Oⓘ ScheeliteCa(WO4)
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ SpinelMgAl2O4
Oⓘ ThorianiteThO2
Oⓘ ThoriteTh(SiO4)
Oⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Oⓘ TitaniteCaTiO(SiO4)
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Thorianite var. Uranothorianite(Th,U)O2
Oⓘ Scapolite var. Wernerite
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ ZirconZr(SiO4)
Oⓘ ZirconoliteCaZrTi2O7
Oⓘ Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Albite var. CleavelanditeNa(AlSi3O8)
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Oⓘ ApatiteCa5(PO4)3A
Oⓘ Elbaite-Liddicoatite Series
Oⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Oⓘ Spinel SubgroupA2+D23+O4
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ FluoriteCaF2
Fⓘ HumiteMg7(SiO4)3F2
Fⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Fⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Naⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Naⓘ RichteriteNa(CaNa)Mg5(Si8O22)(OH)2
Naⓘ Scapolite var. Wernerite
Naⓘ Albite var. CleavelanditeNa(AlSi3O8)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Naⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Naⓘ Elbaite-Liddicoatite Series
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ CordieriteMg2Al4Si5O18
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ ForsteriteMg2(SiO4)
Mgⓘ Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Mgⓘ HumiteMg7(SiO4)3F2
Mgⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ RichteriteNa(CaNa)Mg5(Si8O22)(OH)2
Mgⓘ SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Mgⓘ SpinelMgAl2O4
Mgⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Mgⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Mgⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Microcline var. AmazoniteK(AlSi3O8)
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ CordieriteMg2Al4Si5O18
Alⓘ CorundumAl2O3
Alⓘ DiasporeAlO(OH)
Alⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Alⓘ HiboniteCaAl12O19
Alⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ MeioniteCa4Al6Si6O24CO3
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ OsumiliteK◻2Fe22+Al3[Al2Si10O30]
Alⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ RhodiziteKBe4Al4(B11Be)O28
Alⓘ Corundum var. RubyAl2O3
Alⓘ Corundum var. SapphireAl2O3
Alⓘ SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpinelMgAl2O4
Alⓘ Scapolite var. Wernerite
Alⓘ Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ Albite var. CleavelanditeNa(AlSi3O8)
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Alⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Alⓘ Elbaite-Liddicoatite Series
Alⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Microcline var. AmazoniteK(AlSi3O8)
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ CordieriteMg2Al4Si5O18
Siⓘ DiopsideCaMgSi2O6
Siⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ EnstatiteMg2Si2O6
Siⓘ ForsteriteMg2(SiO4)
Siⓘ Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ HumiteMg7(SiO4)3F2
Siⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ MeioniteCa4Al6Si6O24CO3
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Thorite var. OrangiteTh(SiO4)
Siⓘ OsumiliteK◻2Fe22+Al3[Al2Si10O30]
Siⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ RichteriteNa(CaNa)Mg5(Si8O22)(OH)2
Siⓘ SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ ThoriteTh(SiO4)
Siⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Siⓘ TitaniteCaTiO(SiO4)
Siⓘ Scapolite var. Wernerite
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ ZirconZr(SiO4)
Siⓘ Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Albite var. CleavelanditeNa(AlSi3O8)
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Siⓘ Elbaite-Liddicoatite Series
Siⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ Monazite GroupREE(PO4)
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ AnhydriteCaSO4
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CovelliteCuS
ClChlorine
Clⓘ Scapolite var. Wernerite
KPotassium
Kⓘ Microcline var. AmazoniteK(AlSi3O8)
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ OsumiliteK◻2Fe22+Al3[Al2Si10O30]
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ RhodiziteKBe4Al4(B11Be)O28
Kⓘ FluorophlogopiteKMg3(Si3Al)O10F2
Kⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
CaCalcium
Caⓘ AndraditeCa3Fe23+(SiO4)3
Caⓘ AnhydriteCaSO4
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ FluoriteCaF2
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ HiboniteCaAl12O19
Caⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Caⓘ MeioniteCa4Al6Si6O24CO3
Caⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Caⓘ RichteriteNa(CaNa)Mg5(Si8O22)(OH)2
Caⓘ ScheeliteCa(WO4)
Caⓘ TitaniteCaTiO(SiO4)
Caⓘ Scapolite var. Wernerite
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ ZirconoliteCaZrTi2O7
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Caⓘ ApatiteCa5(PO4)3A
Caⓘ Elbaite-Liddicoatite Series
Caⓘ Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTiO(SiO4)
Tiⓘ ZirconoliteCaZrTi2O7
Tiⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
VVanadium
Vⓘ MottramitePbCu(VO4)(OH)
FeIron
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ OsumiliteK◻2Fe22+Al3[Al2Si10O30]
Feⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ CovelliteCuS
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ MottramitePbCu(VO4)(OH)
ZrZirconium
Zrⓘ BaddeleyiteZrO2
Zrⓘ ZirconZr(SiO4)
Zrⓘ ZirconoliteCaZrTi2O7
WTungsten
Wⓘ ScheeliteCa(WO4)
PbLead
Pbⓘ MottramitePbCu(VO4)(OH)
ThThorium
Thⓘ Thorite var. OrangiteTh(SiO4)
Thⓘ ThorianiteThO2
Thⓘ ThoriteTh(SiO4)
Thⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Thⓘ Thorianite var. Uranothorianite(Th,U)O2
UUranium
Uⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Uⓘ Thorianite var. Uranothorianite(Th,U)O2

Geochronology

Mineralization age: Mesoproterozoic to Ordovician : 1330 ± 40 Ma to 480 ± 20 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
 Paleozoic
  Ordovician
   Early/Lower Ordovician
ⓘ Thorianite480 ± 20 MaSoafia thorianite deposit, Maromby, Amboasary Sud District, Anosy, Madagascar
    
   
  Cambrian
   Miaolingian
ⓘ Biotite500 ± 12 MaAmbindandrakemba, Tranomaro, Amboasary Sud District, Anosy, Madagascar
   Cambrian Series 2
ⓘ Monazite Group (youngest age)515 MaOsumilite occurrence, Tranomaro, Amboasary Sud District, Anosy, Madagascar
   Terreneuvian
ⓘ Phlogopite534 ± 30 MaSoafia thorianite deposit, Maromby, Amboasary Sud District, Anosy, Madagascar
Precambrian
 Proterozoic
  Neoproterozoic
   Ediacaran
ⓘ Monazite Group (oldest age)591 MaOsumilite occurrence, Tranomaro, Amboasary Sud District, Anosy, Madagascar
    
   
  Mesoproterozoic
   Ectasian
ⓘ Gneiss1330 ± 40 MaAmbindandrakemba, Tranomaro, Amboasary Sud District, Anosy, Madagascar

Localities in this Region

Other Regions, Features and Areas that Intersect

AfricaContinent
African Plate
Somali PlateTectonic Plate

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References

 
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