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

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

   

Calcite Twin and Native Copper from National Mine, Rockland, Ontonagon County, Michigan

 
Calcite Twin and Native Copper from National Mine, Rockland, Ontonagon County, Michigan

Calcite Twin and Native Copper from National Mine, Rockland, Ontonagon County, Michigan

Calcite Twin and Native Copper from National Mine, Rockland, Ontonagon County, Michigan

Calcite Twin and Native Copper from National Mine, Rockland, Ontonagon County, Michigan

DESCRIPTION:No. 13641
Mineral:Calcite Twin and Native Copper
Locality:National Mine, Rockland, Ontonagon County, Michigan
Description:Lustrous transparent gray calcite crystals intergrown with dark tarnished native (naturally occurring) copper. The calcite crystals are contact-twinned on the {001} plane, and red-metallic untarnished copper is visible inside.
Overall Size:5.5x4x3 cm
Crystals:14-18 mm
Archived: For reference only

 

 

 

 

 

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