Tetrahedrite Subgroup from selected localities.
Austria | |
| G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995 |
| [var: Mercury-bearing Tetrahedrite] |
Austria | |
| G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995 |
| [var: Mercury-bearing Tetrahedrite] |