Muscovite from La Joya mining district, Cercado Province, Oruro, Bolivia
Bolivia | |
| [var. Sericite] Thompson, J.F.H., Sillitoe, R.H., Baker, T., Lang, J.R., and Mortensen, J.K. (1999): Mineralium Deposita 34, 323-334. Thompson, J.F.H., Sillitoe, R.H., Baker, T., Lang, J.R., and Mortensen, J.K. (1999): Mineralium Deposita 34, 323-334. USGS Bulletin # 1975, p.131-136, 246. |