|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Illinois > Calcite, Sphalerite, Fluorite
|Calcite, Sphalerite, Fluorite
|Cave-in-Rock District, Hardin County, Illinois
|Plate of many cubic purple fluorite crystals to 15 mm with an imperfect large golden calcite crystal 6 cm long and large doubly-terminated 4 cm sphalerite crystal with chalcopyrite overgrowth.
|For reference only
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