Case 7

Datolite

Keweenaw Point Keweenaw County Michigan Excellent thumbnail from the noted occurrence out on Keweenaw Point. Good butter yellow. 1.9 x 1.8 x 1.2cm SOLD TM21-1152

Copper

crystals

Phoenix Mine Keweenaw County Michigan Very fine miniature of tenorite coated copper xls on matrix. Classic Phoenix Mine specimen. Ex. Ernie Schlicter collection. 4.0 x 2.7 x 1.8cm SOLD TM19-884

Calcite crystals

Phoenix Mine Keweenaw County Michigan Outstanding miniature with a larger clear calcite crystal sitting on a bed of smaller calcites that are filled with copper. Neat stepped crystal faces. 4.4 x 3.0 x 2.5cm SOLD TM75-555

Datolite

Franklin Mine Houghton County Michigan Beautiful datolite from a seldom seen location. 3.8 x 3.2 x 1.0cm SOLD TM21-1153

Copper Agate

Wolverine #2 Mine Houghton County Michigan Choice copper agate with lots of visible copper mixed in the agate banding. 1.8 x 1.4 x .6cm SOLD TM75-556

Copper crystals

Phoenix Mine Keweenaw County Michigan Excellent small cabinet specimen of tightly packed, branches of copper crystals. Crystallized on all sides. Ex. Wayne Sukow collection. 6.3 x 5.5 x 3.2cm SOLD TM19-885

Datolite

Ridge Mine Ontonagon County Michigan Choice specimen from this small mine outside of Mass City in Ontonagon County. The intense color is all copper that is tightly packed together. 2.7 x 2.5 x 1.0cm SOLD TM21-1154

Prehnite

Centennial Mine Houghton County Michigan Gorgeous specimen of crystallized green Prehnite with small copper crystals. 6.0 x 5.0 x 2.6cm SOLD TM75-557