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Case 12

Copper Crystals

Phoenix Mine, Keweenaw County, Michigan Large thumbnail of copper crystals intermixed with calcite crystals. J.T.Reeder specimen #1237 on specimen & the museum label. 3.0 x 2.3 x 2.0cm SOLD TM19-1011

Quartz Crystals

Lake Superior Copper District, Michigan Excellent cabinet specimen of Quartz, Epidote, Pumpellyite & Native Copper. Many of the Quartz crystals have bright native copper inclusions. Ex. Seaman Mineral Museum #HM 70; comes with label. 9.5 x 6.7 x 7.0cm SOLD TM75- 685

Datolite

Clark Adit Mine, Keweenaw County, Michigan Great color and in perfect condition, Nice medium-size stone. 4.0 x 3.1 x 1.6cm $55 TM21-1346

Copper Crystals

Iron City Mine, Keweenaw County, Michigan Choice miniature of nice, sharp copper crystals emerging from a datolite and calcite matrix. Great association. 4.7 x 4.0 x 2.7cm SOLD TM19-1012

Datolite

Bumblebee Mine, Ontonagon County, Michigan Probably the best pair we have had from this mine. Very unusual, with pleasing color, and in perfect condition, front and back. 6.3 x 4.1 x 1.5cm SOLD TM21-1347

Laumontite/Copper

Copper Falls Mine, Keweenaw County, Michigan Very fine 4 inch branch of crystalline copper with laumontite all over it. Ex. Seaman Mineral Museum. Comes with old label. 9.1 x 4.0 x 7cm SOLD TM75-686
Click on any picture to zoom in for closer detail.
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© 2025 Tamarack Mineral Company. All Rights Reserved. Website by North Country Website Design.

Case 12

Copper Crystals

Phoenix Mine, Keweenaw County, Michigan Large thumbnail of copper crystals intermixed with calcite crystals. J.T.Reeder specimen #1237 on specimen & the museum label. 3.0 x 2.3 x 2.0cm SOLD TM19-1011

Quartz Crystals

Lake Superior Copper District, Michigan Excellent cabinet specimen of Quartz, Epidote, Pumpellyite & Native Copper. Many of the Quartz crystals have bright native copper inclusions. Ex. Seaman Mineral Museum #HM 70; comes with label. 9.5 x 6.7 x 7.0cm SOLD TM75- 685

Datolite

Clark Adit Mine, Keweenaw County, Michigan Great color and in perfect condition, Nice medium- size stone. 4.0 x 3.1 x 1.6cm $55 TM21-1346

Copper Crystals

Iron City Mine, Keweenaw County, Michigan Choice miniature of nice, sharp copper crystals emerging from a datolite and calcite matrix. Great association. 4.7 x 4.0 x 2.7cm SOLD TM19-1012

Datolite

Bumblebee Mine, Ontonagon County, Michigan Probably the best pair we have had from this mine. Very unusual, with pleasing color, and in perfect condition, front and back. 6.3 x 4.1 x 1.5cm SOLD TM21-1347

Laumontite/Copper

Copper Falls Mine, Keweenaw County, Michigan Very fine 4 inch branch of crystalline copper with laumontite all over it. Ex. Seaman Mineral Museum. Comes with old label. 9.1 x 4.0 x 7cm SOLD TM75-686
Click on any picture to zoom in for closer detail.
Next Page: Ordering Info Next Page: Ordering Info