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 a 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

SOLD

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 a 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