Samiresy, Tritriva, Betafo District, Vakinankaratra, Madagascari
Regional Level Types | |
---|---|
Samiresy | - not defined - |
Tritriva | Commune |
Betafo District | District |
Vakinankaratra | Region |
Madagascar | Country |
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Latitude & Longitude (WGS84):
19° 58' 9'' South , 46° 52' 53'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Betafo | 29,785 (2018) | 15.5km |
Antsirabe | 186,253 (2018) | 19.6km |
Soanindrariny | 21,000 (2018) | 37.6km |
Antanifotsy | 70,626 (2018) | 57.7km |
Mindat Locality ID:
2261
Long-form identifier:
1:2:2261:6
GUID (UUID V4):
473676df-5a8f-4495-8359-623fe5bf4188
Other Languages:
Malagasy:
Samiresy, Kaominin'i Tritriva, Distrikan'i Betafo, Vakinankaratra, Madagasikara
The locality Samiresy covers a number of pegmatite dikes (classified as potassic pegmatites after A. Lacroix 1922) worked for minerals containing U, beryl and rose quartz.
It is located SW of Tritriva and about 20 km SW of the town Antsirabe in the main highland of Madagascar.
One of these dikes is the type locality of the now discredited "samiresite", a plumbian uranpyrochlore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Beryl Formula: Be3Al2(Si6O18) Colour: blue, yellow, green Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p |
ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Bismite Formula: Bi2O3 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Bismuth Formula: Bi Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Bismuthinite Formula: Bi2S3 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Bismutite Formula: (BiO)2CO3 Reference: Michel Arliguie specimen |
ⓘ Columbite-(Fe) Formula: Fe2+Nb2O6 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse |
ⓘ Dravite Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Euxenite-(Y) Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Goethite Formula: α-Fe3+O(OH) Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Hematite Formula: Fe2O3 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Magnetite Formula: Fe2+Fe3+2O4 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Monazite-(Ce) Formula: Ce(PO4) Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ 'Psilomelane' Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Pucherite Formula: Bi(VO4) Habit: as crust on bismite Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 156 |
ⓘ 'Pyrochlore Group' Formula: A2Nb2(O,OH)6Z Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ 'Pyrochlore Group var. Samiresite' Formula: (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) Reference: Bull. Soc. franc.Mineral. 35 (1912), pp 84-92/ A.Lacroix: (1922) Mineralogie de Madagascar I ,p 283 |
ⓘ 'Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)' Formula: (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) Reference: Bull. Soc. franc.Mineral. 35 (1912), pp 84-92/ A.Lacroix: (1922) Mineralogie de Madagascar I ,p 283 |
ⓘ Pyromorphite Formula: Pb5(PO4)3Cl Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Quartz Formula: SiO2 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Quartz var. Rose Quartz Formula: SiO2 Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 199 |
ⓘ Rutile Formula: TiO2 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Rutile var. Ilmenorutile Formula: (Ti,Nb)O2 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Rutile var. Strüverite Formula: (Ti,Ta,Fe)O2 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Samarskite-(Y) Formula: YFe3+Nb2O8 Reference: Knut Edvard Larsen collection # MM-2248 (visually identification) |
ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Xenotime-(Y) Formula: Y(PO4) Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
ⓘ Zircon Formula: Zr(SiO4) Reference: Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Bismuth | 1.CA.05 | Bi |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Bismuthinite | 2.DB.05 | Bi2S3 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Bismite | 4.CB.60 | Bi2O3 |
ⓘ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
ⓘ | Euxenite-(Y) | 4.DG.05 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
ⓘ | Hematite | 4.CB.05 | Fe2O3 |
ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
ⓘ | 'Pyrochlore Group' | 4.00. | A2Nb2(O,OH)6Z |
ⓘ | 'var. Samiresite' | 4.00. | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
ⓘ | 'var. Uranpyrochlore (of Hogarth 1977)' | 4.00. | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
ⓘ | Quartz | 4.DA.05 | SiO2 |
ⓘ | var. Rose Quartz | 4.DA.05 | SiO2 |
ⓘ | Rutile | 4.DB.05 | TiO2 |
ⓘ | var. Ilmenorutile | 4.DB.05 | (Ti,Nb)O2 |
ⓘ | var. Strüverite | 4.DB.05 | (Ti,Ta,Fe)O2 |
ⓘ | Samarskite-(Y) | 4.DB.25 | YFe3+Nb2O8 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Bismutite | 5.BE.25 | (BiO)2CO3 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
ⓘ | Monazite-(Ce) | 8.AD.50 | Ce(PO4) |
ⓘ | Pucherite | 8.AD.40 | Bi(VO4) |
ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
Group 9 - Silicates | |||
ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
ⓘ | Dravite | 9.CK.05 | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
ⓘ | 'Psilomelane' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
H | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
H | ⓘ Goethite | α-Fe3+O(OH) |
H | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
H | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Be | Beryllium | |
Be | ⓘ Beryl | Be3Al2(Si6O18) |
B | Boron | |
B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
B | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
C | Carbon | |
C | ⓘ Bismutite | (BiO)2CO3 |
O | Oxygen | |
O | ⓘ Quartz | SiO2 |
O | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
O | ⓘ Quartz var. Rose Quartz | SiO2 |
O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
O | ⓘ Magnetite | Fe2+Fe23+O4 |
O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
O | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
O | ⓘ Zircon | Zr(SiO4) |
O | ⓘ Xenotime-(Y) | Y(PO4) |
O | ⓘ Monazite-(Ce) | Ce(PO4) |
O | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
O | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
O | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
O | ⓘ Bismite | Bi2O3 |
O | ⓘ Goethite | α-Fe3+O(OH) |
O | ⓘ Hematite | Fe2O3 |
O | ⓘ Pucherite | Bi(VO4) |
O | ⓘ Beryl | Be3Al2(Si6O18) |
O | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
O | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
O | ⓘ Bismutite | (BiO)2CO3 |
O | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
O | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
O | ⓘ Rutile | TiO2 |
F | Fluorine | |
F | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
F | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Na | Sodium | |
Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Na | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
Mg | Magnesium | |
Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Mg | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | Aluminium | |
Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Al | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | ⓘ Beryl | Be3Al2(Si6O18) |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Quartz var. Rose Quartz | SiO2 |
Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Si | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | ⓘ Zircon | Zr(SiO4) |
Si | ⓘ Beryl | Be3Al2(Si6O18) |
P | Phosphorus | |
P | ⓘ Xenotime-(Y) | Y(PO4) |
P | ⓘ Monazite-(Ce) | Ce(PO4) |
P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
S | Sulfur | |
S | ⓘ Bismuthinite | Bi2S3 |
Cl | Chlorine | |
Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
K | Potassium | |
K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Ca | Calcium | |
Ca | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
Ca | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ca | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ti | Titanium | |
Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Ti | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ti | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
Ti | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
Ti | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ti | ⓘ Rutile | TiO2 |
V | Vanadium | |
V | ⓘ Pucherite | Bi(VO4) |
Mn | Manganese | |
Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Fe | Iron | |
Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Fe | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
Fe | ⓘ Goethite | α-Fe3+O(OH) |
Fe | ⓘ Hematite | Fe2O3 |
Fe | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
Fe | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
Y | Yttrium | |
Y | ⓘ Xenotime-(Y) | Y(PO4) |
Y | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Y | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
Zr | Zirconium | |
Zr | ⓘ Zircon | Zr(SiO4) |
Nb | Niobium | |
Nb | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
Nb | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Nb | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
Nb | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
Nb | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
Nb | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
Nb | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ce | Cerium | |
Ce | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
Ce | ⓘ Monazite-(Ce) | Ce(PO4) |
Ce | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ce | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Ta | Tantalum | |
Ta | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
Ta | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Ta | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
Ta | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Pb | Lead | |
Pb | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
Bi | Bismuth | |
Bi | ⓘ Bismuth | Bi |
Bi | ⓘ Bismite | Bi2O3 |
Bi | ⓘ Bismuthinite | Bi2S3 |
Bi | ⓘ Pucherite | Bi(VO4) |
Bi | ⓘ Bismutite | (BiO)2CO3 |
Th | Thorium | |
Th | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
U | Uranium | |
U | ⓘ Pyrochlore Group var. Samiresite | (U,Ca,Ce,Pb)2(Nb,Ta)2O6(OH,F) |
U | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
U | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
Geochronology
Mineralization age: Neoproterozoic : 915 ± 72 MaImportant 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 Time | Rocks, Minerals and Events | ||||||
---|---|---|---|---|---|---|---|
Precambrian | |||||||
Proterozoic | |||||||
Neoproterozoic | |||||||
Tonian |
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References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Lacroix, A. (1922) Minéralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A. Challamel (Éditeur), Paris. 624 p.
Ranorosoa, N. (1986) Étude minéralogique des pegmatites du champ de la Sahatany, Madagascar. Thèse de Doctorat de l'Université Paul Sabatier, Toulouse.
Other Regions, Features and Areas containing this locality
Madagascar
- Ankaratra Volcanic RangeVolcanic Range
- ⭔Antananarivo ProvinceProvince
Somali PlateTectonic Plate
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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.
Samiresy, Tritriva, Betafo District, Vakinankaratra, Madagascar