AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Silver and Copper var. Halfbreed |
DESCRIPTION: | No. 41989 |
Mineral: | Silver and Copper var. Halfbreed |
Locality: | Keweenaw Peninsula Copper District, Houghton County, Michigan |
Description: | Arborescent formation of native silver crystals up to 5 mm long on one side of crystallized native copper with minor quartz and calcite filling voids. The silver content is at least a third of the specimen. Ex. Robert C. Lambert (1919-2008) #378; acquired in 1991 from Neal A. Pfaff (1947–2013) |
Overall Size: | 4.5x3x1.5 cm |
Crystals: | 0.5-5.0 mm |
Archived: | For reference only |
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