Mineral: Sphalerite, Fluorite
Locality: Denton Mine, Sub-Rosiclare formation, Goose Creek Mine group, Harris Creek Sub-District, Hardin County, Illinois, USA
Dimensions: 4 x 2.8 x 2.6 cm / main crystal: 2.9 cm

Description: Mass: 37 g MIM number: 1468 Probable year of extraction : 1986 Perfectly crystallized, lustrous, complex knob-shaped crystal which has grown on a pedestal of altered purple fluorite. Photographer: AINU / Augustin de Valence Publications: "Mineralogical Record: May-Jun 2008", "Minéraux - Le Guide des Passionnés" Ex collection: Ross C. Lillie (USA)

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