|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Prehnite and Copper on Calcite
|Prehnite and Copper on Calcite
|Tamarack Mine, Calumet, Houghton County, Michigan
|Well crystallized green prehnite in hemispherical crystal aggregates. Nestled in the corners are several crystals of native copper. Very clean, no damage. Good large prehnite crystals with excellent luster - the best I have available from this old mine. From old collection ca. 1890
|For reference only
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