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Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

 
Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

Photo below under longwave ultraviolet illumination:
Fluorite with Chalcopyrite from Cave-in-Rock District, Hardin County, Illinois

DESCRIPTION:No. 76942
Mineral:Fluorite with Chalcopyrite
Locality:Cave-in-Rock District, Hardin County, Illinois
Description:Lustrous internally zoned cubic fluorite crystals to 25 mm with scattered yellow-metallic tetrahedral chalcopyrite crystals to 0.5 mm. The fluorite crystals are transparent purple, with yellow core zones that fluoresce orange under LW UV illumination. Collected ca. 1985
Overall Size:4.5x3x3 cm
Crystals:micro to 25 mm
Status: Sold - Posted here for reference only
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