Chalcocite from
USA | |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 128 |
| www.mineralsocal.org |
Pabst, A. et al. (1977): Vuagnatite from California. Mineralogical Record 8, 497-500 | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |