Tetrahedrite Subgroup from Spar group of claims, Mayer, Big Bug Mining District, Bradshaw Mountains (Bradshaw Range), Yavapai County, Arizona, USA
USA | |
| [var. Silver- and Gold-bearing Tetrahedrite] Lindgren, W. (1926), USGS Bull. 782: 142-143. |
USA | |
| [var. Silver- and Gold-bearing Tetrahedrite] Lindgren, W. (1926), USGS Bull. 782: 142-143. |