Mineral: Calcite
Locality: Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
Dimensions: 6.2 x 6.4 cm

Description: Glassy yellow modified calcite scalenohedrons to 2.0 cm in length on a small piece of brownish fluorite. Recovered during pillar robbing on the sub-Rosiclare Level in early March 1995.

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