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Ambatomena, Isoanala Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar
Ambatomena, Kaominina Isoanala, Distrikan'i Betroka, Faritra Anosy, Faritanin'i Toliary, MadagasikaraRuby-bearing cordieritite layers or lenses, intercalated within biotite-cordierite-sillimanite-bearing charnockite. The deposit was exploited by a private company from 2000 to 2001.
Located about 10 km NE of Isoanala.
Mineral List
| 'Albite-Anorthite Series' Cordierite | Corundum var: Ruby Phlogopite | Rutile Sapphirine |
6 entries listed. 4 valid minerals.
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References
- Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Oxygen isotope systematics of gem corundum deposits in Madagascar: relevance for their geological origin. Mineralium Deposita 42, 251-270.
- Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Gem corundum deposits of Madagascar: A review. Ore Geology Reviews 34, 134-154.
- Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., Ralantoarison, T., Razanatseheno, M., Offant, Y., Garnier, V., Maluski, H., Dunaigre, C., Schwarz, D., and Ratrimo, V. (2008): Gem corundum deposits of Madagascar: A review. Ore Geology Reviews 34, 134-154.
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