Case 10

Analcime/Copper

Phoenix Mine, Keweenaw County, Michigan A single analcime crystal covered with arborescent copper crystals. J. T .Reeder specimen #647 from the collections of the Seaman Mineral Museum. Comes with Museum label. 2.0 x 2.0 x 1.5cm SOLD TM75-692

Datolite

Franklin Mine, Houghton County, Michigan Outstanding color in this medium-size datolite. In perfect condition, front and back. 4.3 x 3.4 x .8cm $75 TM21-1355

Natrolite

Gratiot Mine, Keweenaw County, Michigan Great miniature of water clear natrolite crystals growing from a vug lined with pink prehnite. 4.4 x 2.7 x 2.3cm $65 TM75-693

Datolite

Mandan Gravel Pit, Keweenaw County, Michigan Choice datolite from this unique location up in the Keweenaw. Has great color, highlighted by the white border. 4.3 x 3.0 x .8cm $45 TM21-1356

Copper Crystals

Kearsarge Lode, Houghton County, Michigan Excellent cabinet specimen with spears of copper crystals emerging from the quartz and epidote matrix. Ex. Seaman Mineral Museum #DLM 14, comes with museum label. 10.0 x 7.5 x 5.0cm $175 TM19-1018

Black Calcite

Possibly Isle Royal Mine, Houghton County, Michigan J. T. Reeder specimen #JTR 1258 that George Robinson believed came from the Isle Royal Mine by comparing it to museum specimen DM 1380. Comes with museum label with George's note on it. 4.2 x 3.0 x 3.6cm SOLD TM75-694