Silver
O'Brien Mine, Cobalt, Ontario, Canada
120 x 71 x 7mm
Very rich silver in clots, veinlets and dendritic areas embedded in arsenide mineralization in a particularly dark vein structure. From one of the original mines of Cobalt, this slice is from a piece mined prior to 1917 and then donated to a museum. Rich!
Reference:17089
minID: EEM-G52
Verified:9th Dec 2019
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