AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Prehnite with Copper crystals

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Prehnite with Copper crystals from Tamarack Mine, Calumet, Houghton County, Michigan

 
Prehnite with Copper crystals from Tamarack Mine, Calumet, Houghton County, Michigan

Prehnite with Copper crystals from Tamarack Mine, Calumet, Houghton County, Michigan

DESCRIPTION:No. 19474
Mineral:Prehnite with Copper crystals
Locality:Tamarack Mine, Calumet, Houghton County, Michigan
Description:Well crystallized green prehnite in hemispherical crystal aggregates. Nestled in the corners are many crystals of native copper. The prehnite has a natural crack in it from early formation, with copper crystals inside. Very clean, From old collection ca. 1890
Overall Size:7x6x4 cm
Crystals:1-4 mm
Archived: For reference only

 

 

 

 

 

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