JH14E5: Calcite doubly terminated - Minerva I Mine, Illinois USA
Calcite doubly terminated

Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois  USA (±1980)

Specimen size: 8.8 × 6 × 6.5 cm = 3.5” × 2.4” × 2.6”
Main crystal size: 2.9 × 0.9 cm = 1.1” × 0.4”

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