AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper in Calcite

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Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

 
Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

DESCRIPTION:No. 21882
Mineral:Copper in Calcite
Locality:Keweenaw Peninsula Copper District, Michigan
Description:Translucent calcite with native copper inclusions. The calcite prevents the copper from oxidizing, keeping the copper a bright. Was lightly cleaned in acid to remove surface coating. The large calcite crystal has a complex surfaces of parallel faces.
Overall Size:9x7x6 cm
Crystals:1-90 mm
Archived: For reference only

 

 

 

 

 

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