Mineral: Fluorite with Calcite
Locality: "Green Tracts” (North Green Mine, East Green Mine, West Green Mine), Bethel Level, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
Dimensions: 8.5 x 7.5 x 6 cm

Description: MIM number: 1438 Probable year of extraction : 1955 Two interpenetrating crystals (probably twinned) of a vivid amber-orange color, lustrous and transparent with smooth surfaces; growth of small fluorite cubes on some faces. Photographer: FMI / James Elliott; Publication: "American Mineral Treasures" Ex collection: Ross C. Lillie (USA)

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