UM1956-01-O:HPbU from selected localities.
USA | |
| Frondel, C. (1956): Mineral composition of gummite. American Mineralogist: 41: 539-568. |
Frondel, C. (1956): Mineral composition of gummite. American Mineralogist: 41: 539-568. |
USA | |
| Frondel, C. (1956): Mineral composition of gummite. American Mineralogist: 41: 539-568. |
Frondel, C. (1956): Mineral composition of gummite. American Mineralogist: 41: 539-568. |