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Copper, Quartz

Locality: Keweenaw Peninsula, Michigan, USA

A 14.5x12x9.5 cm crystal group of huge Copper dodecahedrons on matrix with Quartz crystals. In the collection of the University of Michigan Department of Earth and Environmental Sciences. Ex L. L. Hubbard collection. Debra Wilson photo.

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Photo added: 5th Jan 2012

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