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Copper with Prehnite
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Copper with Prehnite (Ref: 1651440)

Cliff mine, Keweenaw Co., Michigan, USA
95mm x 60mm x 45mm
$420
Fairly sharp large crystals of native copper measuring to 1.8 cm in size forming a cluster with some attached matrix. This is in good condition all around.
Data last checked on 23rd Jul 2025 - specimen may no longer be available

From: Weinrich Minerals
Buy now from Weinrich Minerals

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See Also

Copper with Prehnite, Microcline
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Copper on Prehnite
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Copper
Central mine, Keweenaw Co., Michigan, USA
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Copper
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Copper
Central mine, Keweenaw Co., Michigan, USA
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Copper
Ahmeek Mine, Keweenaw Co., Michigan, USA
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White Pine Mine, White Pine, Ontonagon Co., Michigan, USA
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Silver with Copper
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$455
70mm x 40mm x 40mm
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Copper, Copper in Calcite
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$375
35mm x 30mm x 20mm
From: Marin Minerals
Copper
Hekla Mine, Houghton Co., Michigan, USA
$475
75mm x 65mm x 36mm
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Copper
Kearsarge #4 Mine, Houghton Co., Michigan, USA
$350
80mm x 50mm x 50mm
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Copper
Keweenaw Co., Michigan, USA
$340
27mm x 16mm x 12mm
From: Weinrich Minerals
Native copper + Quartz. 1067.90 ct.
Keweenaw Co., Michigan, USA
$542 *
From: A Bijoux
Copper
Copper Falls Mine, Keweenaw Co., Michigan, USA
$150
40mm x 22mm x 10mm
From: Marin Minerals
* price is an approximate conversion and may not be accurate.

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