The tetrahedrite crystal on this specimen is a simple tetrahedron with very smooth, clean crystal faces and a bright, shiny metallic gray color. |
Hurst observed pyrargyrite partly and completely enclosing polybasite crystals on tetrahedrite. |
Hurst describes the vugs as containing gold, silver, polybasite, pyrargyrite, and tetrahedrite. |
The main ore minerals are galena, chalcopyrite, sphalerite, and tetrahedrite that are associated with quartz and barite gangue. |
We collected excellent crystals of tetrahedrite to 5 mm scattered on drusy quartz from a zone in the siliceous envelope of the orebody. |
Lovering, Tweto, and Lovering noted small veinlets of tetrahedrite cutting interbanded chalcopyrite and bornite. |