Species: Native Copper
Locality: Lake Superior Copper District, Houghton County, Michigan USA
Dimensions: 32 x 6.5 x 3.5 cm.
This is an elegant and very large elongated group of native copper crystals showing unusual cubic and modified tetrahexehdral crystal forms from an unknown mine in the Lake Superior Copper District, Houghton County, Michigan USA. A choice large Michigan copper with numerous sharp parallel-growth cubic and modified cubic crystals sporting a very attractive red cuprite patina. From the noted collection of Lance T. Hampel of Germantown, Wisconsin, later donated to the A.E. Seaman Mineral Museum, from whom I acquired it in trade. Well-crystallized copper specimens with a good patina from the Michigan Copper Country are becoming increasingly scarce on the market, and this fine old-timer, likely mined 100+ years ago, is a choice large example. Crystallized on all sides and displayable from numerous angles. Annette Slade photo.