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Fluorite, Calcite, Sphalerite 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 7.6 x 5.3 cm (Author: Don Lum)

Fluorite, Calcite, Sphalerite
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
7.6 x 5.3 cm (Author: Don Lum)

Dimensions: 1600 x 1193
File size: 334.01 kbytes
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