1600422hhdwlnnr.a ((COPPER)), $10 MINIMUM BID, Central Mine, Central Keweenaw, Michigan, 3.5 x 2.5 x .5 cm, thumbnail | |
Here is a Copper mounted in a perky box from a known mine in Michigan. Large crystals with flattened contact on front and back from growing in a .5 cm crack in the matrix rock. |