"Coated" Copper, Michigan - Item MSCOP-016

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$100.00
$100.00
Unavailable
per item
Very unique copper piece from the White Pine Mine in Ontonagon County, Michigan. These copper crystals are coated in an unknown arsenic substance which gives the specimen a silvery sheen.
Approximate size: 59x27x8 mm
Weight: 10.8 g
1 available