Case 10

Calcite Crystals

Adventure Mine, Ontonagon County, Michigan. Beautiful group of calcites that are filled with tenorite inclusions giving them a smoky color. 4.2 x 3.5 x 2.7cm SOLD TM 75-612

Datolite

Quincy Mine, Houghton County, Michigan. Excellent color set off by the dark veining. 4.6 x 3.3 x 1.9cm SOLD TM 21-1238

Copper Crystals

South LaSalle Mine, Houghton County, Michigan. Great group of copper crystals from the South LaSalle Mine with a very large center crystal that jumps out at you. 6.6 x 4.5 x 2.2cm SOLD TM19-939

Datolite

Delaware Mine, Keweenaw County, Michigan. Very unusual Datolite from the Delaware. John Perona found a large rock that had about 30 nodules of this unique color. 4.5 x 3.2 x 1.0cm SOLD TM 21-1239

Copper skull

Osceola Mine, Houghton County, Michigan. Great example of this unique form of Copper. 11.2 x 10.3 x 5.6cm SOLD TM 75-613

Copper/Silver float

Houghton County, Michigan. A rare piece found on a farm in Liminga, Michigan. Lots of silver which was obviously crystallized until the glacier got hold of it. 9.0 x 7.8 x 3.0cm SOLD TM 45-240

Datolite

Quincy Mine, Houghton County, Michigan. Beautiful interior is lavender colored with a wine colored ring around the exterior. 5.3 x 5.1 x 2.1cm SOLD TM 21-1240