Boulangerite from Utah, USA
USA | |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |