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Fluorite, Calcite Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA 12.5 x 8.5 cm (Author: Don Lum)

Fluorite, Calcite
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
12.5 x 8.5 cm (Author: Don Lum)

Dimensions: 1600 x 1048
File size: 292.34 kbytes
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