Coola, Ekunha, Huambo Province, Angolai
| Regional Level Types | |
|---|---|
| Coola | Occurrence |
| Ekunha | Municipality |
| Huambo Province | Province |
| Angola | Country |
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Latitude & Longitude (WGS84):
12° 31' South , 15° 16' East
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Cretaceous carbonatite breccia, syenite, ijolite and fenite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
7 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:
| β Aegirine-augite Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 Reference: Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β 'Alkali Feldspar' Reference: Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Reference: Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β Baryte Formula: BaSO4 Reference: Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β Dolomite Formula: CaMg(CO3)2 Reference: Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β Fluorite Formula: CaF2 Reference: Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β Nepheline Formula: Na3K(Al4Si4O16) Reference: Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β 'Parisite' Formula: Ca(Ce/La/Nd/REE)2(CO3)3F2 Reference: Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β Quartz Formula: SiO2 Reference: Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β 'Synchysite' Formula: Ca(Ce/Nd/Y/REE)(CO3)2F Reference: Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11. |
| β Synchysite-(Y) Formula: CaY(CO3)2F Reference: Orris, G.J., and Grauch, R.I. (2002): USGS Open-File Report 02-189. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 3 - Halides | |||
|---|---|---|---|
| β | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| β | Synchysite-(Y) | 5.BD.20c | CaY(CO3)2F |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| β | Aegirine-augite | 9.DA.20 | (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 |
| β | Nepheline | 9.FA.05 | Na3K(Al4Si4O16) |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Alkali Feldspar' | - | |
| β | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| β | 'Parisite' | - | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| β | 'Synchysite' | - | Ca(Ce/Nd/Y/REE)(CO3)2F |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| C | Carbon | |
| C | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| C | β Synchysite-(Y) | CaY(CO3)2F |
| C | β Dolomite | CaMg(CO3)2 |
| C | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| O | Oxygen | |
| O | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| O | β Synchysite-(Y) | CaY(CO3)2F |
| O | β Baryte | BaSO4 |
| O | β Dolomite | CaMg(CO3)2 |
| O | β Quartz | SiO2 |
| O | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| O | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | β Nepheline | Na3K(Al4Si4O16) |
| O | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| F | Fluorine | |
| F | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| F | β Synchysite-(Y) | CaY(CO3)2F |
| F | β Fluorite | CaF2 |
| F | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| F | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Na | Sodium | |
| Na | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Na | β Nepheline | Na3K(Al4Si4O16) |
| Mg | Magnesium | |
| Mg | β Dolomite | CaMg(CO3)2 |
| Mg | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Al | Aluminium | |
| Al | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Al | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | β Nepheline | Na3K(Al4Si4O16) |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Si | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | β Nepheline | Na3K(Al4Si4O16) |
| S | Sulfur | |
| S | β Baryte | BaSO4 |
| Cl | Chlorine | |
| Cl | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| K | Potassium | |
| K | β Nepheline | Na3K(Al4Si4O16) |
| Ca | Calcium | |
| Ca | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ca | β Synchysite-(Y) | CaY(CO3)2F |
| Ca | β Fluorite | CaF2 |
| Ca | β Dolomite | CaMg(CO3)2 |
| Ca | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Ca | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Ti | Titanium | |
| Ti | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Fe | Iron | |
| Fe | β Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Y | Yttrium | |
| Y | β Synchysite-(Y) | CaY(CO3)2F |
| Y | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Ba | Barium | |
| Ba | β Baryte | BaSO4 |
| La | Lanthanum | |
| La | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | Cerium | |
| Ce | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Nd | Neodymium | |
| Nd | β Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Nd | β Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Orris, G.J., Grauch, R.I. (2002) Rare earth element mines, deposits, and occurrences. USGS Open-File Report 02-189.
Woolley, A. R. (2001). Alkaline rocks and carbonatites of the world. Part 3: Africa. Geological Society. Natural History Museum, London, p. 17.
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., & Gomes, C. B. (1999). Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29(4), 735-759. doi.org/10.1016/S0899-5362(99)00127-X
Issa Filho, A. B. R. M. D., Dos Santos, A. B. R. M. D., Riffel, B. F., Lapido-Loureiro, F. E. V., & McReath, I. (1991). Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40(1-3), 205-226. doi.org/10.1016/0375-6742(91)90039-W
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
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