AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Illinois > Calcite over Fluorite

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

Calcite over Fluorite from Cave-in-Rock District, Hardin County, Illinois

 
Calcite over Fluorite from Cave-in-Rock District, Hardin County, Illinois

Photo below under shortwave ultraviolet illumination:
Calcite over Fluorite from Cave-in-Rock District, Hardin County, Illinois

DESCRIPTION:No. 37638
Mineral:Calcite over Fluorite
Locality:Cave-in-Rock District, Hardin County, Illinois
Description:Purple cubic fluorite crystal completely overgrown with scalenohedral translucent brown calcite crystals up to 35 mm long. The calcite crystals are most translucent at the tips where they have rhombohedral termination faces that give them a rounded look.
Overall Size:6x5x4 cm
Crystals:1-35 mm
Archived: For reference only

 

 

 

 

 

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