AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper (naturally crystallized native copper)

Copper (naturally crystallized native copper) from Keweenaw Peninsula Copper District, Houghton County, Michigan

DESCRIPTION:	No. 70938
Mineral:	Copper (naturally crystallized native copper)
Locality:	Keweenaw Peninsula Copper District, Houghton County, Michigan
Description:	Sharp native copper crystals (naturally occurring copper crystals) in a curved formation with remnants of gray matrix in crevices. Under magnification the surfaces are seen to be well-defined copper crystals with surfaces composed of parallel faces. Collected ca. 1960
Overall Size:	6x3x1.5 cm
Crystals:	micro to 10 mm
Archived:	For reference only

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