Tomboarivo pegmatite, Sahanivotry Manandona, Antsirabe II District, Vakinankaratra, Madagascari
| Regional Level Types | |
|---|---|
| Tomboarivo pegmatite | Pegmatite |
| Sahanivotry Manandona | Commune |
| Antsirabe II District | Rural District |
| Vakinankaratra | Region |
| Madagascar | Country |
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Latitude & Longitude (WGS84):
20° South , 47° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~12km
Type:
Köppen climate type:
Other Languages:
Malagasy:
Tomboarivo, Kaominin'i Sahanivotry Manandona, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara
A pegmatite worked for betafite by the french Commissariat à l'Énergie Atomique (C.E.A.). It is situated about 2-3 km west of the small town Sahanivotry in the Manandona valley about 30 km south of the city Antsirabe in the central highland of Madagascar.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
14 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 DiagramDetailed Mineral List:
| ⓘ Aeschynite-(Y) Formula: Y(TiNb)O6 Description: Pseudo-hexagonal crystals (described as priorite, analyzed by Mignot) |
| ⓘ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) Description: Masses up to several kilos. |
| ⓘ Anatase Formula: TiO2 Description: Variety xanthitane. As microscopic crystals in pseudomorphs after titanite |
| ⓘ Anatase var. Xanthitane Formula: TiO2 |
| ⓘ Autunite ? Formula: Ca(UO2)2(PO4)2 · 10-12H2O |
| ⓘ Beryl Formula: Be3Al2(Si6O18) |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ Bismutite Formula: (BiO)2CO3 |
| ⓘ 'Fergusonite' |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Microcline var. Amazonite Formula: K(AlSi3O8) Description: According to Behier (1958) a specimen of a large, about 20 cm carlsbader twin crystal of amazonite was donated to the "Museum de Paris" by Mignot. |
| ⓘ 'Monazite Group' Formula: REE(PO4) |
| ⓘ 'Pyrochlore Supergroup' Formula: A2-mD2X6-wZ1-n |
| ⓘ 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)' Formula: (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 |
| ⓘ Rutile Formula: TiO2 Description: Reticulated twinned crystals on smoky quartz. |
| ⓘ Rutile var. Ilmenorutile Formula: (Ti,Nb)O2 |
| ⓘ Thorite Formula: Th(SiO4) |
| ⓘ Thorite var. Orangite Formula: Th(SiO4) |
| ⓘ Titanite Formula: CaTi(SiO4)O |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ Vermiculite Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| ⓘ Zircon Formula: Zr(SiO4) |
| ⓘ Zircon var. Malacon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile var. Ilmenorutile | 4.DB.05 | (Ti,Nb)O2 |
| ⓘ | 4.DB.05 | TiO2 | |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| ⓘ | var. Xanthitane | 4.DD.05 | TiO2 |
| ⓘ | Aeschynite-(Y) | 4.DF.05 | Y(TiNb)O6 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Bismutite | 5.BE.25 | (BiO)2CO3 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Autunite ? | 8.EB.05 | Ca(UO2)2(PO4)2 · 10-12H2O |
| Group 9 - Silicates | |||
| ⓘ | Thorite var. Orangite | 9.AD.30 | Th(SiO4) |
| ⓘ | 9.AD.30 | Th(SiO4) | |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | var. Malacon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Vermiculite | 9.EC.50 | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| ⓘ | Microcline var. Amazonite | 9.FA.30 | K(AlSi3O8) |
| ⓘ | 9.FA.30 | K(AlSi3O8) | |
| Unclassified | |||
| ⓘ | 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)' | - | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Fergusonite' | - | |
| ⓘ | 'Pyrochlore Supergroup' | - | A2-mD2X6-wZ1-n |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| H | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Bismutite | (BiO)2CO3 |
| O | Oxygen | |
| O | ⓘ Aeschynite-(Y) | Y(TiNb)O6 |
| O | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| O | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Bismutite | (BiO)2CO3 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Thorite var. Orangite | Th(SiO4) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Anatase var. Xanthitane | TiO2 |
| O | ⓘ Zircon var. Malacon | Zr(SiO4) |
| O | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Na | Sodium | |
| Na | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Al | Aluminium | |
| Al | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Si | Silicon | |
| Si | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Thorite var. Orangite | Th(SiO4) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zircon var. Malacon | Zr(SiO4) |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| P | ⓘ Monazite Group | REE(PO4) |
| K | Potassium | |
| K | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| Ca | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ti | Titanium | |
| Ti | ⓘ Aeschynite-(Y) | Y(TiNb)O6 |
| Ti | ⓘ Anatase | TiO2 |
| Ti | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Ti | ⓘ Anatase var. Xanthitane | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
| Y | Yttrium | |
| Y | ⓘ Aeschynite-(Y) | Y(TiNb)O6 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon var. Malacon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | ⓘ Aeschynite-(Y) | Y(TiNb)O6 |
| Nb | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Nb | ⓘ Rutile var. Ilmenorutile | (Ti,Nb)O2 |
| Ta | Tantalum | |
| Ta | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
| Bi | Bismuth | |
| Bi | ⓘ Bismutite | (BiO)2CO3 |
| Th | Thorium | |
| Th | ⓘ Thorite var. Orangite | Th(SiO4) |
| Th | ⓘ Thorite | Th(SiO4) |
| U | Uranium | |
| U | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| U | ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977) | (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH) |
Other Regions, Features and Areas containing this locality
AfricaContinent
African Plate
- Antenanarivo BlockOrogenic Belt
Madagascar
- Ankaratra Volcanic RangeVolcanic Range
- ⭔Antananarivo ProvinceProvince
Somali PlateTectonic Plate
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Tomboarivo pegmatite, Sahanivotry Manandona, Antsirabe II District, Vakinankaratra, Madagascar