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Copper with Prehnite, Microcline
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Copper with Prehnite, Microcline (Ref: 9711517)

Centennial mine, Houghton Co., Michigan, USA
75mm x 65mm x 40mm
$610
Nicely crystallized native copper coming off a matrix that is coated with prehnite and microcline. In great condition all around. The specimen comes with several previous labels, including one from the A. E. Seaman Museum.
Data last checked on 16th Aug 2025 - specimen may no longer be available

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See Also

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Copper on Prehnite
Michigan Mine, Ontonagon County, Michigan, USA
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Copper
Calumet and Hecla Mine, Houghton Co., Michigan, USA
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Copper
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Hekla Mine, Houghton Co., Michigan, USA
$475
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Silver with Copper
Calumet and Hecla Mine, Houghton Co., Michigan, USA
$455
70mm x 40mm x 40mm
Copper
Phoenix Mine, Keweenaw Co., Michigan, USA
$600
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Calcite with Copper
Quincy mine, Houghton Co., Michigan, USA
$790
38mm x 20mm x 12mm
Copper
Central mine, Keweenaw Co., Michigan, USA
$535
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Copper, Copper in Calcite
Quincy Mine, Houghton Co., Michigan, USA
$375
35mm x 30mm x 20mm
Copper
Kearsarge #4 Mine, Houghton Co., Michigan, USA
$350
80mm x 50mm x 50mm
Copper with Calcite
Houghton Co., Michigan, USA
$475
90mm x 70mm x 60mm
Copper
Central mine, Keweenaw Co., Michigan, USA
$470
40mm x 20mm x 7mm
Copper
Houghton Co., Michigan, USA
$760
20mm x 10mm x 10mm
* price is an approximate conversion and may not be accurate.

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