2027

Native Copper in Black Shale Matrix - 2 pcs [132374]

Currency:USD Category:Collectibles / Rocks, Fossils & Minerals Start Price:100.00 USD Estimated At:200.00 - 400.00 USD
Native Copper in Black Shale Matrix - 2 pcs  [132374]
SOLD
110.00USD+ (27.50) buyer's premium + applicable fees & taxes.
This item SOLD at 2021 May 14 @ 08:46UTC-7 : PDT/MST
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Two specimens of native copper with black shale matrix. One is a slab of dense, black shale with feathery bits of bright orange native copper through it, approx 4.5 x 3 x 1 inch, weighing about 395 grams. The second is a thick leaf of native copper with a piece of black shale attached to one side, approx 5.5 x 3.5 x 0.75 inches, weighing about 212 grams. These may have come from area of the White Pine Mine at the western end of Michigan's Keweenaw Peninsula where the Nonesuch Formation is known to be a major source native copper.

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Country (if not USA):
State: Michigan
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Provenance: Salvatore Falcone Collection