Case 8

Datolite

Gratiot Mine, Keweenaw County, Michigan. Another scarce locality from Dr. Donald Kelman's collection. 6.2 x 3.5 x 3.1cm SOLD TM21-1268

Copper Crystals

Phoenix Mine, Keweenaw County, Michigan. Fabulous specimen of crystallized copper with nice sharp crystals that have a natural patina of cuprite and tenorite. Ex. Bruce and Peg Fowler collection. 10.8 x 4.7 x 2.1cm SOLD TM19-958

Analcimes

Rhode Island Mine, Houghton County, Michigan. Very fine miniature with white and clear analcime crystals on all sides. Locality is gone now, crushed for road gravel. From John Perona. 4.0 x 3.0 x 2.2cm SOLD TM75-627

Datolite

Delaware Mine, Keweenaw County, Michigan. Fine medium size specimen with great color and in perfect condition front and back. Hard to find a better specimen nowadays. 6.4 x 4.6 x 2.1cm SOLD TM21-1269

Copper

Crystals

Empire (Iron City) Mine, Keweenaw County, Michigan. Excellent spear of crystallized copper from this small mine out in the Keweenaw. 7.6 x 2.6 x 1.5cm $85 TM19-959

Datolite

Michigan Mine, Ontonagon County, Michigan. Very fine specimen from this mine, acquired by Dr. Kelman at the "Datolite Ball" on October 17, 1998. From the Seaman Museum collection. 8.2 x 3.7 x 2.6cm SOLD TM21-1270