Case 10

Quartz Crystals

Adventure Mine Ontonagon County Michigan Very fine miniature spray of quartz crystals, some with adularia crystals. Collected 1986 on the second level of the Adventure mine. 3.9 x 2.5 x 1.8cm TM 75-529 $55.00

Datolite

Michigan Mine Ontonagon County Michigan Great color in this datolite from a seldom-seen location in Ontonagon County. 3.6 x 2.7 x 1.6cm TM 21-1087 SOLD

Copper Crystals

Laker Pocket Keweenaw County Michigan Excellent crystallization and color on this beautiful specimen from the Laker Pocket. Recovered from Lake Superior summer of 2008. 5.9 x 2.8 x 2.9cm TM 19-843 $165.00

Chrysocolla/Copper

National Mine Ontonagon County Michigan Very fine example of chrysocolla with cuprite-coated copper running through the chrysocolla. Collected 1989 from the southern-most National shaft.. 6.0 x 3.6 x 2.8cm TM 75-530 SOLD

Copper Crystals

Cliff Mine Keweenaw County Michigan Superb branch of copper crystals that comes with a fine chisel chip, also found at the Cliff. Each ridge on the chisel chip represents one blow of a sledge hammer to a hand-held chisel, all done by candlelight: awesome. Copper xls:   6.1 x 3.5 x 1.4cm Chisel chip:   8.0 x 1.8 x 0.4cm TM 19-844 SOLD