Case 12

Copper Crystals

White Pine Mine, Ontonagon County, Michigan Choice thumbnail made up of stacked sharp cubes. 1.4 x .9 x 2.2cm SOLD TM19-965

Datolite

Quincy Mine, Houghton County, Michigan Beautiful color in this good sized Datolite from Quincy. 6.7 x 5.1 x 2.0cm $135 TM21-1280

"Cubic" Silver Crystals

Copper Falls, Keweenaw County, Michigan Excellent large miniature of silver crystals on a prehnite matrix, most likely from the "Silver Pit" near Copper Falls. 5.4 x 4.1 x 1.3cm $235 TM45-245

Copper Crystals

Mass "C" shaft, Ontonagon County, Michigan Outstanding small cabinet specimen of nice sharp copper crystals that displays well in all directions. 6.2 x 5.2 x 4.5cm $365 TM19-966

Datolite

Gratiot Mine, Keweenaw County, Michigan Fine datolite from a seldom seen locality. Ex. Donald Kelman collection. 3.9 x 3.3 x 1.7cm SOLD TM21-1281

Copper Crystals

Cliff Mine, Keweenaw County, Michigan Very fine miniature of well- defined copper crystals from the upper Cliff shaft #4. 3.0 x 1.2 x 5.1cm SOLD TM19-967

Datolite

Mesnard Mine, Houghton County, Michigan Nice datolite with a yellow undertone that is filled with pink specks. From the 10th level in the Mesnard Mine. 4.8 x 2.6 x 2.2cm $60 TM21-1282