16idmw.is ((DATOLITE with COPPER inclustions)), $20 MINIMUM BID, Mass Mine, Mass Consolidated Mine, Mass City, Ontonagon Co., Michigan, 1.5 x 1.3 x .5 cm, Thumbnail | |
Reddish Datolite nodule half polished. Pure Copper specks can also be seen on the surface. ex Glen Davidson collection. |