Mineral: Fluorite
Locality: Hill-Ledford Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
Dimensions: 6.5 x 9.9 cm

Description: Pale purple cubic fluorite crystals with stepped growth and darker purple spots associated with metallic gray galena. The darker purple areas appear to by caused by microscopic chalcopyrite crystals partially embedded in the fluorite.

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