Tetrahedrite Subgroup from selected localities.
USA | |
| U.S. Geological Survey Professional Paper 223 |
[var: Mercury-bearing Tetrahedrite] Minerals of Colorado (1997) E.B. Eckel | |
U.S. Geological Survey Professional Paper 223 | |
Minerals of Colorado (1997) Eckel, E. B. | |
| U.S. Geological Survey Professional Paper 223 |
U.S. Geological Survey Professional Paper 223 | |
USGS PP 223(Lovering,1950) |