WGNHS
Wisconsin Geological and Natural History Survey

Hessite

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

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).