Pyrite from Price County, Wisconsin, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. 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. |