Mineral: Strontianite, Calcite, Fluorite
Locality: Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
Dimensions: 10.5 x 10 cm

Description: Posted before on December 12, 2012 as calcite and fluorite. It does have calcite and fluorite but the bulk of the specimen is strontianite.

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