Case 8

Greenstone

Central Mine Keweenaw County Michigan Very rare & unique specimen! Good size greenstone that broke when removing it from a large rock. Inside...a well formed copper crystal. Only the 2nd one I have seen out of thousands that I have looked at. 1.8 x 1.7 x 1.4cm SOLD TM75-558

Copper crystals

White Pine Mine Ontonagon County Michigan Excellent group of copper crystals that have some small silver crystals tucked in among the top coppers. 6.4 x 2.5 x .9cm SOLD TM19-886

Datolite

Centennial Mine Houghton County Michigan Beautiful pair of Centennial datolites in excellent condition. 2.6 x 2.1 x .7cm SOLD TM21-1155

Silver crystals /

Copper

Evergreen Bluff Mine Ontonagon County Michigan Excellent small cabinet specimen with several different groups of silver xls perched on copper. Ex. Wayne Sukow Collection. 7.5 x 3.8 x 3.8cm SOLD TM45-229

Datolite

Ridge Mine Ontonagon County Michigan Another excellent datolite from this small mine outside of Mass City. 3.5 x 2.8 x 1.7cm SOLD TM21-1156

Calcite crystals

White Pine Mine Ontonagon County Michigan Very fine miniature of calcites with several being doubly terminated and twinned. I believe the dark inclusions are chalcocite. 5.8 x 4.3 x 3.0cm SOLD TM75-559a

Copper crystals

LaSalle Mine Houghton County Michigan Excellent group of tenorite coated copper xls. in and on matrix. The copper crystals run right through the matrix with one sticking out of the vug near the bottom of the specimen. (see pic) 5.0 x 4.7 x 3.8cm SOLD TM19-887

Datolite

Caledonia Mine Ontonagon County Michigan Here is one of the fire engine reds that came from the one and only pocket of this color mined at the Caledonia. Ex. Wayne Sukow Collection. 3.2 x 2.9 x 1.0cm SOLD TM21-1157