Muscovite from Price County, Wisconsin, USA
USA | |
| [var. Sericite] DeMatties, T. (1990) The Ritchie Creek main zone: a lower Proterozoic copper-gold volcanogenic massive sulfide deposit in northern Wisconsin: Economic Geology: 85: 1908-1916. |
USA | |
| [var. Sericite] DeMatties, T. (1990) The Ritchie Creek main zone: a lower Proterozoic copper-gold volcanogenic massive sulfide deposit in northern Wisconsin: Economic Geology: 85: 1908-1916. |