Mineral: Sphalerite, Fluorite
Locality: Denton Mine, Sub-Rosiclare formation, Goose Creek Mine group, Harris Creek Sub-District, Hardin County, Illinois, USA
Dimensions: 6.5 x 7.6 x 6.3 cm / main crystal: 1.5 cm.

Description: Mass: 252 g MIM number: 1469 Probable year of extraction : 1990 Around 10 small crystals, well formed and lustrous, studding the front face of a piece of fluorite Photographer: FMI / James Elliott; Ex collection: Ross C. Lillie (USA)

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