Albite from Ecuador
Ecuador | |
| Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155 |
| Aspden et al. (1995) |
www.mineralmundi.com | |
| Aspden, J.A., Bonilla, W., Duque, P., (1995): The El Oro metamorphic complex, Ecuador: geology and economic mineral deposits. Overseas Geology and Mineral Resources 67, pp. 63, 1 map, British Geological Survey publ., Nottingham. |
| [var. Oligoclase] Alejandro Felix |
| Alejandro Felix Collection |
| Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155 |
| Alfredo Petrov specimens |