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

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

   

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

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

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

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

DESCRIPTION:No. 53705
Mineral:Calcite
Locality:Cave-in-Rock District, Hardin County, Illinois
Description:Elongated scalenohedral translucent brown calcite crystals in tapered, spray-shaped formations. The calcite fluoresces white under UV illumination, probably due to hydrocarbon inclusions which might be responsible for the brown color.
Overall Size:7.5x3.5x3 cm
Crystals:15-35 mm
Archived: For reference only

 

 

 

 

 

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