Diopside from Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USA
USA | |
| Knopf, Adolf (1914a), The Darwin silver-lead mining district, California: USGS Bulletin 580: 1-18. |
Rocks & Min.: 23:504-507. |
USA | |
| Knopf, Adolf (1914a), The Darwin silver-lead mining district, California: USGS Bulletin 580: 1-18. |
Rocks & Min.: 23:504-507. |