Skaggs Springs Mine, Skaggs Springs, Warm Springs Dam, Coast Range, Sonoma Co., California

15.7 x 6.9 x 6.7 cm

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Ex. University of Michigan Geology Department

Metacinnabar: HgS ; Idrialite: C₂₂H₁₄

The Metacinnabar is the black, granular material with the high luster. Also present are small, elongated crystals of red/orange Realgar. The Curtisite is a yellow/green color (see last photo) and not easily distinguished in visible light but fluoresces a bright green under SW. The specimen was acquired by the University of Michigan at least 50 years ago. The label for the specimen has been glued onto a thin piece of card stock which looks to be at least that old.

Condition: Good

Flaws: Nothing Appreciable

This mineral is also found in the following galleries: Minerals From California and Nevada | Sulfides and Sulfosalts | Borates and Hydrocarbons | Rare Minerals | Fluorescents | Minerals Priced Between 50 and 99 Dollars