- 3D75
- Copper In Calcite (Ex. Brown Univ.)
- Houghton County, Michigan, USA
- Thumbnail, 1.8 x 1.5 x 1.2 cm
- Ex. Marilyn Dodge
- SOLD
Intergrown Copper and Calcite that this region is so noted for. The presentation side had good clarity and superb striations in the Calcite, but the back is unusual for its Copper intergrown with sharp scalenohedron Calcite faces. Nice thumb, and actually better in person yet.
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Copper
Houghton Co., Michigan, USA
Thumbnail, 2.5 x 1.8 x 1.3 cm
Copper
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Small Cabinet, 6.3 x 5.3 x 3.4 cm
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Calcite
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Small Cabinet, 8.5 x 6.5 x 6.1 cm
Calcite
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Small Cabinet, 7.9 x 6.0 x 4.6 cm
Calcite
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Small Cabinet, 8.3 x 7.4 x 3.2 cm
Copper
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Miniature, 5.2 x 2.5 x 2.0 cm
Copper
Poteryaevskoe Mine, Rubtsovsk, Altai, Western-Siberian Region, Russia
Small Cabinet, 6.3 x 2.9 x 2.7 cm
Copper
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Small Cabinet, 6.4 x 3.1 x 1.7 cm
Copper
Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
Cabinet, 9.6 x 5.0 x 4.0 cm
Calcite
Dalen-Kjorholt Mine, Brevik (Porsgrunn), Norway
Cabinet, 10.5 x 4.6 x 3.1 cm
Copper
Adventure Mine, Ontonagon County, Michigan, USA
Small Cabinet, 6.8 x 4.8 x 4.5 cm
Copper
Central Mine, Keweenaw County, Michigan, USA
Small Cabinet, 6.2 x 5.0 x 2.7 cm
Copper
Osceola Mine, Shaft #20, Houghton County, Michigan, USA
Small Cabinet, 6.0 x 3.9 x 2.3 cm
Copper
Ojibway Mine, Keweenaw County, Michigan, USA
Miniature, 5.2 x 5.0 x 2.5 cm
Copper
Central Mine, Keweenaw County, Michigan, USA
Toenail, 3.1 x 3.1 x 1.5 cm
Copper
Central Mine, Keweenaw County, Michigan, USA
Small Cabinet, 8.9 x 6.5 x 3.0 cm
Copper
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Small Cabinet, 6.6 x 4.6 x 2.1 cm