Hessite

Massive gray hessite in quartz with minor pyrite. Field of view is 12 mm. McAlpine Mine, Coulterville District, California. (Photo courtesy Norman King; unauthorized reproduction is prohibited.)

Formula: Ag2Te Monoclinic

Description:

Hessite is a silver telluride forming masses or pseudo-cubic crystals in hydrothermal deposits.

RUSK COUNTY: Hessite was reported as tiny grains intergrown with other sulfides in the primary ore at the Flambeau Copper Mine, Ladysmith ( May and Dinkowitz, 1996).