USD 165.00BUY*
Copper
Northwestern Mine, Keeweenaw Co., Michigan, USA
50 x 37 x 20mm

A decenly sized copper crystal from one of the more obscure Michigan copper mines. Please note that it can only be displayed from the front.

The Northwestern Mine was worked intermittently from 1846 to 1865. This piece was collected from one of the dumps that remain.
Reference:FS24
minID: 25C-5PA
Verified:5th Nov 2018

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