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Copper (spinel twinned) with Copper
Copper (spinel twinned) with Copper Copper (spinel twinned) with Copper
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Copper (spinel twinned) with Copper (Ref: MISC26-08)

Chengmenshan Mine, Jiujiang Co., Jiujiang, Jiangxi, China
110mm x 60mm x 10mm
$3850
This is a Copper (spinel twinned) with Copper from Chengmenshan Mine, Jiujiang Co., Jiujiang, Jiangxi, China. China has not been, in the past, a contender for world-class copper specimens the likes of Michigan or Onganja.
Data last checked on 6th Sep 2026
From: The Arkenstone
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See Also

Copper
Chengmenshan Mine, Jiujiang Co., Jiujiang, Jiangxi, China
$2750
70mm x 50mm x 50mm
From: The Arkenstone
Copper (spinel twinned) on Copper
Chengmenshan Mine, Jiujiang Co., Jiujiang, Jiangxi, China
$2450
60mm x 50mm x 10mm
From: The Arkenstone
Silver on Copper
Pewabic Lode, Keweenaw, Michigan, USA
$3850
80mm x 40mm x 20mm
From: The Arkenstone
Copper (cubic!)
Ojibway Mine, Keweenaw Co., Michigan, USA
$3500
75mm x 50mm x 35mm
From: Marin Minerals
Copper With Cuprite
Poteryaevskoe Mine, Rubtsovsk, Altai, Western-Siberian Region, Russia
$3500
100mm x 60mm x 60mm
From: The Arkenstone
Copper
Houghton Co., Keweenaw Penisula, Michigan, USA
$3500
87mm x 60mm x 30mm
From: Marin Minerals
Copper in Copper cast
Houghton Co., Michigan, USA
$3500
110mm x 50mm x 20mm
From: The Arkenstone
Copper with Calcite
Keweenaw Peninsula, Michigan, USA
$3500
40mm x 25mm x 25mm
From: Marin Minerals
Copper (spinel-twinned)
Chino Mine, Santa Rita, Grant County, New Mexico, USA
$4500
90mm x 10mm x 10mm
From: The Arkenstone
Copper (twinned)
Itauz Mine, Satpayev, Karaganda Region, Kazakhstan
$4500
70mm x 60mm
From: The Arkenstone
Copper (Spinel-Twinned)
Chino Mine (Santa Rita Pit; Santa Rita Mine), Santa Rita, Santa Rita District, Grant Co., New Mexico, USA
$3000
80mm x 10mm x 10mm
From: The Arkenstone
Copper ps. Laumontite
Cliff Mine, Allouez Township, Keweenaw Co., Michigan, USA
$4800
60mm x 50mm x 40mm
From: The Arkenstone
Copper
Aranzazú Mine, Aranzazú, Concepción del Oro Mun., Zacatecas, Mexico
$3000
120mm x 60mm x 50mm
From: The Arkenstone
Copper
Ray Mine, Mineral Creek District, Pinal Co., Arizona, USA
$2850
50mm x 30mm
From: The Arkenstone
Fluorite on Fluorite
De'An Fluorite Mine, Wushan, De'An Co., Jiujiang, Jiangxi Prov., China
$3500
80mm x 70mm x 40mm
From: The Arkenstone
* price is an approximate conversion and may not be accurate.

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