Betroka District, Anosy, Madagascari
| Regional Level Types | |
|---|---|
| Betroka District | District |
| Anosy | Region |
| Madagascar | Country |
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Type:
Largest Settlements:
| Place | Population |
|---|---|
| Ambalasoa | 4,000 (2018) |
Other Languages:
French:
Betroka, Anosy, Madagascar
Italian:
Betroka, regione di Anosy, Madagascar
Malagasy:
Distrikan'i Betroka, Faritr' Anosy, Madagasikara
Simplified Chinese:
貝特魯卡, 阿諾西區, 马达加斯加
Dutch:
Betroka, Anosy, Madagaskar
Japanese:
ベトルカ, アヌシ地域圏, マダガスカル
Polish:
Betroka, Anosy, Madagaskar
Portuguese:
Betroka, Anosy, Madagáscar
Swedish:
Betroka, Anosyregionen, Madagaskar
Betroka is a district of Anosy in Madagascar.
Note on the mineral list: In the mineral markets of Antsirabe, occasionally gemmy, green single crystals of diopside coming from Betroka are erroneously sold as kornerupine, which also occurs in the district.
Note on the mineral list: In the mineral markets of Antsirabe, occasionally gemmy, green single crystals of diopside coming from Betroka are erroneously sold as kornerupine, which also occurs in the district.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity 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-localities53 valid minerals. 1 (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 DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hercynite | 4.BB.05 | Fe2+Al2O4 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | var. Pleonaste | 4.BB.05 | (Mg,Fe)Al2O4 |
| ⓘ | Ferrohögbomite-2N2S | 4.CB. | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| ⓘ | Corundum | 4.CB.05 | Al2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Corundum var. Ruby | 4.CB.05 | Al2O3 |
| ⓘ | var. Sapphire | 4.CB.05 | Al2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | var. Opal-CT | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Thorianite | 4.DL.05 | ThO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anhydrite | 7.AD.30 | CaSO4 |
| ⓘ | Celestine | 7.AD.35 | SrSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Cheralite | 8.AD.50 | CaTh(PO4)2 |
| Group 9 - Silicates | |||
| ⓘ | Phenakite | 9.AA.05 | Be2SiO4 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
| ⓘ | Thorite var. Orangite | 9.AD.30 | Th(SiO4) |
| ⓘ | 9.AD.30 | Th(SiO4) | |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Sillimanite | 9.AF.05 | Al2(SiO4)O |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Grandidierite | 9.AJ.05 | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| ⓘ | Thortveitite | 9.BC.05 | Sc2Si2O7 |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Kornerupine | 9.BJ.50 | Mg3Al6(Si,Al,B)5O21(OH) |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Cordierite | 9.CJ.10 | Mg2Al4Si5O18 |
| ⓘ | Dravite | 9.CK.05 | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Laurentthomasite (TL) | 9.CM.05 | K◻2Mg2(Be2Al)[Si12O30] |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | var. Bronzite | 9.DA.05 | (Mg,Fe2+)2[SiO3]2 |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Edenite | 9.DE.15 | NaCa2Mg5(Si7Al)O22(OH)2 |
| ⓘ | Pargasite ? | 9.DE.15 | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| ⓘ | Sapphirine | 9.DH.45 | Mg4(Mg3Al9)O4[Si3Al9O36] |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Talc var. Steatite | 9.EC.05 | Mg3(Si4O10)(OH)2 |
| ⓘ | 9.EC.05 | Mg3Si4O10(OH)2 | |
| ⓘ | Pyrophyllite | 9.EC.10 | Al2Si4O10(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Sanidine | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| ⓘ | var. Labradorite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
| ⓘ | Marialite | 9.FB.15 | Na4Al3Si9O24Cl |
| ⓘ | Analcime | 9.GB.05 | Na(AlSi2O6) · H2O |
| ⓘ | Laumontite | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| Unclassified | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Bastnäsite' | - | (Ce/Nd/Y/REE)(CO3)F |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chabazite' | - | |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Heulandite Subgroup' | - | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| ⓘ | 'Tourmaline var. Indicolite' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Scapolite var. Wernerite' | - | |
| ⓘ | 'Feldspar Group var. Perthite' | - | |
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Orthopyroxene Subgroup' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
| ⓘ | 'Chevkinite Group' | - | |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Analcime | Na(AlSi2O6) · H2O |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| H | ⓘ Talc var. Steatite | Mg3(Si4O10)(OH)2 |
| H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| H | ⓘ Opal var. Opal-CT | SiO2 · nH2O |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Phenakite | Be2SiO4 |
| Be | ⓘ Laurentthomasite | K◻2Mg2(Be2Al)[Si12O30] |
| B | Boron | |
| B | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| B | ⓘ Tourmaline var. Indicolite | |
| B | ⓘ Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Scapolite var. Wernerite | |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | ⓘ Anhydrite | CaSO4 |
| O | ⓘ Anorthite | Ca(Al2Si2O8) |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Celestine | SrSO4 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Cordierite | Mg2Al4Si5O18 |
| O | ⓘ Corundum | Al2O3 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| O | ⓘ Enstatite | Mg2Si2O6 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hercynite | Fe2+Al2O4 |
| O | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Tourmaline var. Indicolite | |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
| O | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Marialite | Na4Al3Si9O24Cl |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Thorite var. Orangite | Th(SiO4) |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| O | ⓘ Phenakite | Be2SiO4 |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Corundum var. Ruby | Al2O3 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Sanidine | K(AlSi3O8) |
| O | ⓘ Corundum var. Sapphire | Al2O3 |
| O | ⓘ Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] |
| O | ⓘ Sillimanite | Al2(SiO4)O |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Talc var. Steatite | Mg3(Si4O10)(OH)2 |
| O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Thorianite | ThO2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Thortveitite | Sc2Si2O7 |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Scapolite var. Wernerite | |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| O | ⓘ Spinel var. Pleonaste | (Mg,Fe)Al2O4 |
| O | ⓘ Cheralite | CaTh(PO4)2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| O | ⓘ Opal var. Opal-CT | SiO2 · nH2O |
| O | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| O | ⓘ Laurentthomasite | K◻2Mg2(Be2Al)[Si12O30] |
| F | Fluorine | |
| F | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Na | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| Na | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Na | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Na | ⓘ Marialite | Na4Al3Si9O24Cl |
| Na | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Na | ⓘ Scapolite var. Wernerite | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Cordierite | Mg2Al4Si5O18 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| Mg | ⓘ Enstatite | Mg2Si2O6 |
| Mg | ⓘ Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| Mg | ⓘ Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
| Mg | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] |
| Mg | ⓘ Spinel | MgAl2O4 |
| Mg | ⓘ Talc var. Steatite | Mg3(Si4O10)(OH)2 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Mg | ⓘ Spinel var. Pleonaste | (Mg,Fe)Al2O4 |
| Mg | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| Mg | ⓘ Laurentthomasite | K◻2Mg2(Be2Al)[Si12O30] |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Al | ⓘ Anorthite | Ca(Al2Si2O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Cordierite | Mg2Al4Si5O18 |
| Al | ⓘ Corundum | Al2O3 |
| Al | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Hercynite | Fe2+Al2O4 |
| Al | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
| Al | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Marialite | Na4Al3Si9O24Cl |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| Al | ⓘ Corundum var. Ruby | Al2O3 |
| Al | ⓘ Sanidine | K(AlSi3O8) |
| Al | ⓘ Corundum var. Sapphire | Al2O3 |
| Al | ⓘ Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] |
| Al | ⓘ Sillimanite | Al2(SiO4)O |
| Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | ⓘ Scapolite var. Wernerite | |
| Al | ⓘ Spinel var. Pleonaste | (Mg,Fe)Al2O4 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| Al | ⓘ Laurentthomasite | K◻2Mg2(Be2Al)[Si12O30] |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Si | ⓘ Anorthite | Ca(Al2Si2O8) |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Cordierite | Mg2Al4Si5O18 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| Si | ⓘ Enstatite | Mg2Si2O6 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
| Si | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Marialite | Na4Al3Si9O24Cl |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Thorite var. Orangite | Th(SiO4) |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Si | ⓘ Phenakite | Be2SiO4 |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Sanidine | K(AlSi3O8) |
| Si | ⓘ Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] |
| Si | ⓘ Sillimanite | Al2(SiO4)O |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Si | ⓘ Talc var. Steatite | Mg3(Si4O10)(OH)2 |
| Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Thortveitite | Sc2Si2O7 |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Scapolite var. Wernerite | |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Opal var. Opal-CT | SiO2 · nH2O |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Laurentthomasite | K◻2Mg2(Be2Al)[Si12O30] |
| P | Phosphorus | |
| P | ⓘ Cheralite | CaTh(PO4)2 |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Anhydrite | CaSO4 |
| S | ⓘ Celestine | SrSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| Cl | Chlorine | |
| Cl | ⓘ Marialite | Na4Al3Si9O24Cl |
| Cl | ⓘ Scapolite var. Wernerite | |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Sanidine | K(AlSi3O8) |
| K | ⓘ Laurentthomasite | K◻2Mg2(Be2Al)[Si12O30] |
| Ca | Calcium | |
| Ca | ⓘ Anhydrite | CaSO4 |
| Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Ca | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ca | ⓘ Scapolite var. Wernerite | |
| Ca | ⓘ Cheralite | CaTh(PO4)2 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Sc | Scandium | |
| Sc | ⓘ Thortveitite | Sc2Si2O7 |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| Ti | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| Mn | Manganese | |
| Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Grandidierite | (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2 |
| Fe | ⓘ Hercynite | Fe2+Al2O4 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Fe | ⓘ Spinel var. Pleonaste | (Mg,Fe)Al2O4 |
| Fe | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| Sr | Strontium | |
| Sr | ⓘ Celestine | SrSO4 |
| Y | Yttrium | |
| Y | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Ce | Cerium | |
| Ce | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Nd | Neodymium | |
| Nd | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Th | Thorium | |
| Th | ⓘ Thorite var. Orangite | Th(SiO4) |
| Th | ⓘ Thorianite | ThO2 |
| Th | ⓘ Thorite | Th(SiO4) |
| Th | ⓘ Cheralite | CaTh(PO4)2 |
Geochronology
Mineralization age: Cambrian : 490 ± 20 Ma to 487 ± 4 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 | |||
|---|---|---|---|---|
| Phanerozoic | ||||
| Paleozoic | ||||
| Cambrian | ||||
| Furongian | ||||
Fossils
This region is too big or complex to display the fossil list, try looking at smaller subregions.Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Betroka_(district) |
|---|---|
| Wikidata ID: | Q2900147 |
| GeoNames ID: | 8299289 |
Localities in this Region
- Anosy
- Betroka District
- Anosy
- Betroka District
- Ianabinda
- ⭔Ianakafy
- ⭔Isoanala
- ⭔Ivahona
- ⭔Jangany
- ⭔Mahabo
- ⭔Mahasoa Est
- ⭔Nanarena Besakoa
- ⭔Naninora
- ⭔Sakamahily
- ⭔Tsaraitso
- Vohidava corundum deposit
- Betroka District
Other Regions, Features and Areas that Intersect
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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for access and that you are aware of all safety precautions necessary.
References
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Ambatomena Toby, Bekorobo, Betroka District, Anosy, Madagascar