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Ambodibonara Placer, Antanambao-Manampotsy area, Antanambao Manampotsy, Atsinanana, Madagascari
Regional Level Types
Ambodibonara PlacerPlacer
Antanambao-Manampotsy areaGroup of Placers
Antanambao ManampotsyDistrict
AtsinananaRegion
MadagascarCountry

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 19° South , 48° East (est.)
Margin of Error:~1km
Locality type:Placer
Köppen climate type:Af : Tropical rainforest climate


Pt-deposit about 120 km SE of the capital Antananarivo, near the towns of Anosibe and Antanambao-Manampotsy in the eastern part of Madagascar.

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Toamasina Province (Tamatave), MadagascarProvince (Abolished)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Braggite
Formula: (Pt,Pd,Ni)S
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Cooperite
Formula: PtS
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Cuprorhodsite
Formula: (Cu,Fe)Rh2S4
Reference: Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Erlichmanite
Formula: OsS2
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Hollingworthite
Formula: (Rh,Pt,Pd)AsS
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Isoferroplatinum
Formula: Pt3Fe
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Kashinite
Formula: (Ir,Rh)2S3
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Keithconnite
Formula: Pd20Te7
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Laurite
Formula: RuS2
Reference: Augé, T. & Legendre, O. (1992): Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist 30, 983-1004; Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Platinum
Formula: Pt
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Vincentite ?
Formula: Pd3As
Reference: Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Isoferroplatinum1.AG.35Pt3Fe
Platinum1.AF.10Pt
Group 2 - Sulphides and Sulfosalts
Braggite2.CC.35a(Pt,Pd,Ni)S
Cooperite2.CC.35bPtS
Cuprorhodsite2.DA.05(Cu,Fe)Rh2S4
Erlichmanite2.EB.05aOsS2
Hollingworthite2.EB.25(Rh,Pt,Pd)AsS
Kashinite2.DB.15(Ir,Rh)2S3
Keithconnite2.BC.20Pd20Te7
Laurite2.EB.05aRuS2
Vincentite ?2.AC.05bPd3As
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Platinum Group Metals and Alloys
Isoferroplatinum1.2.5.1Pt3Fe
Platinum1.2.1.1Pt
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:1
Keithconnite2.2.6.1Pd20Te7
Vincentite ?2.2.5.1Pd3As
AmXp, with m:p = 1:1
Braggite2.8.5.3(Pt,Pd,Ni)S
Cooperite2.8.5.1PtS
AmBnXp, with (m+n):p = 3:4
Cuprorhodsite2.10.1.16(Cu,Fe)Rh2S4
AmBnXp, with (m+n):p = 2:3
Kashinite2.11.12.2(Ir,Rh)2S3
AmBnXp, with (m+n):p = 1:2
Erlichmanite2.12.1.16OsS2
Hollingworthite2.12.3.8(Rh,Pt,Pd)AsS
Laurite2.12.1.10RuS2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
OOxygen
O AlbiteNa(AlSi3O8)
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na AlbiteNa(AlSi3O8)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SSulfur
S LauriteRuS2
S CooperitePtS
S Braggite(Pt,Pd,Ni)S
S Kashinite(Ir,Rh)2S3
S Hollingworthite(Rh,Pt,Pd)AsS
S ErlichmaniteOsS2
S Cuprorhodsite(Cu,Fe)Rh2S4
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Fe IsoferroplatinumPt3Fe
CuCopper
Cu Cuprorhodsite(Cu,Fe)Rh2S4
AsArsenic
As Hollingworthite(Rh,Pt,Pd)AsS
As VincentitePd3As
RuRuthenium
Ru LauriteRuS2
RhRhodium
Rh Kashinite(Ir,Rh)2S3
Rh Hollingworthite(Rh,Pt,Pd)AsS
Rh Cuprorhodsite(Cu,Fe)Rh2S4
PdPalladium
Pd KeithconnitePd20Te7
Pd VincentitePd3As
TeTellurium
Te KeithconnitePd20Te7
OsOsmium
Os ErlichmaniteOsS2
IrIridium
Ir Kashinite(Ir,Rh)2S3
PtPlatinum
Pt IsoferroplatinumPt3Fe
Pt CooperitePtS
Pt Braggite(Pt,Pd,Ni)S
Pt PlatinumPt

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Augé, T. and Legendre, O. (1992) Pt-Fe nuggets from alluvial deposits in eastern Madagascar. Canadian Mineralogist, 30, 983-1004 (Abstract in Lapis (1993) 10, 7).
Legendre, O., & Augé, T. (1992). Alluvial platinum‐group minerals from the Manampotsy area, East Madagascar. Australian Journal of Earth Sciences, 39(3), 389-404.
Legendre, O., & Augé, T. (1993). Natural iridium oxide from platiniferous concentrates of the Antanambao-Manampotsy area, Madagascar. Comptes Rendus DE L Academie Des Sciences Serie II, 316(7), 921-927.


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