Case 12

Datolite

Delaware Mine, Keweenaw County, Michigan Beautiful deep color in this medium size datolite that is in perfect condition front and back. Want a really good Delaware specimen? This is it! 5.0 x 4.0 x 1.9cm SOLD TM21-1320

Copper Crystals

Prehistoric Pit, Mt. Bohemia, Keweenaw County, Michigan This is a one-of-a-kind Copper. I bought 5 pieces from a local collector who found this prehistoric site up on Mt. Bohemia in 1998. I traded three pieces to the Seaman Museum where they are on display, and have decided to let this one go. The amazing thing is the prehistoric people were working a vein of crystallized Copper, hammering it into tools. This specimen clearly shows how well the vein was crystallized. Experts say these prehistoric people mined Copper in the Keweenaw 3,000 to 5,000 years ago. 7.5 x 3.3 x 1.9cm SOLD TM19-987

Analcimes

Copper Falls Mine, Keweenaw County, Michigan By far the best group of Analcimes that we have ever had the privilege of handling. An awesome small cabinet specimen. 7.8 x 6.6 x 3.6cm SOLD TM75-654

Copper Crystals

Caledonia Mine, Ontonagon County, Michigan Excellent miniature of stacked and hoppered cubes. Very unusual to find at the Caledonia. 3.4 x 2.5 x 3.3cm SOLD TM19-988

Datolite

Clark Mine, Keweenaw County, Michigan A good size Datolite with very unusual color and appearance, especially from the Clark Mine. 6.0 x 4.5 x 2.5cm SOLD TM21-1321

Copper Crystals

Small Exploration on Cliff Drive, Keweenaw Co., Michigan Very fine miniature copper from a small exploration not far from the Cliff Mine. The predominant crystal form is cubic. 5.7 x 3.4 x 3.1cm $85 TM19-989