Minerva #1 Mine, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
Clusters of parallel yellowish-amber Calcite (var. Strontian Calcite?) scalenohedrons to 25 mm long are perched on lustrous, glassy yellowish cubes of Fluorite. The Fluorites are to 18 mm on edge, and are highly transparent. A slight brown tinge on edges of the Fluorite cubes gives them a smoky look, and phantoms and small flecks of Chalcopyrite are included within them. It is is exceptional condition, with damage only around the margins, where it was removed. Much better in person.
ex. Carolyn Seitz collection