|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Michigan > Copper (crystallized)|
|Locality:||Houghton County, Keweenaw Peninsula Copper District, Michigan|
|Description:||Fine specimen of crystallized native copper in branching, arborescent cluster. No matrix attached. The crystals are blocky shapes with slightly rounded edges. Many crystals show Spinel-law twinning. University of Minnesota Department of Geology and Geophysics; ex. Wendell Wilson #128 (publisher and editor of Mineralogical Record); ex. W. Borden|
|Overall Size:||4.5x3x2 cm|
|Status:||For reference only|
|Buy similar:||Minerals from Midwest, USA > Crystallized Copper|
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