Cobalt-bearing Calcite from Grant County, New Mexico, USA
USA | |
| Walstrom, Robert E. (n.d.) Personal communication. |
| Walstrom, Robert E. (n.d.) Personal communication. |
USA | |
| Walstrom, Robert E. (n.d.) Personal communication. |
| Walstrom, Robert E. (n.d.) Personal communication. |