20hhgd.is ((DATOLITE)), $50 MINIMUM BID, Quincy Mine, Hancock, Houghton Co., Michigan, USA, 3x 3 x .5 cm Miniature | |
Uncommon to rare Quincy Mine Datolite with spider web inclusions of Copper veining. Backside is thin layer of matrix rock. The brown remnants on the back is not copper but old brown clay used as mintack to attach to the plastic base. I replaced with new mintack. |