Fluorite with Sulfide Inclusions on Sphalerite

A perfect complex pale green fluorite with the typical “Aztec” form indicative of Naica. The crystal has excellent clarity and you can see small crystals of sulfides (galena?) floating deep within. Perfectly situated on just the right amount of sphalerite matrix (with minor chalcopyrite). Highly recommended. Ex Sam Koster Collection (acquired 9/21/1984 from Consie Prince).

Locality: Naica, Chihuahua Mexico

Composition: Calcium Fluoride