Mottramite from Imperial County, California, USA
USA | |
| Eckhard D. Stuart collection |
| [var. Duhamelite] Walstrom, Robert E. (n.d.) Personal communication. |
| Walstrom, Robert E. (n.d.) Personal communication. |
USA | |
| Eckhard D. Stuart collection |
| [var. Duhamelite] Walstrom, Robert E. (n.d.) Personal communication. |
| Walstrom, Robert E. (n.d.) Personal communication. |
American Boy Mine, Obregon, Cargo Muchacho Mining District, Cargo Muchacho Mountains, Imperial County, California, USA