Native Copper

Cliff Mine, Phoenix, Keweenaw Co., Michigan, USA
Ex. Philadelphia Academy of Natural Sciences
Small Cabinet, 9.0 x 7.4 x 6.3 cm
Start Time: 11/10/2022 7:00:00 pm (CST)
End Time: 11/17/2022 6:35:00 pm (CST)
Auction Closed
Winning Bid: $259

Item Description

Impressive in both size and metallic, machined-like detail, this select, old-time Copper specimen is from the famous Cliff Mine on the renowned, copper-rich Keweenaw Peninsula. Heavily crystallized, this piece weighs in at a substantial 1 lb and 11 ounces. The Copper crystals are spinel-twinned and dendritic in habit, with the Copper featured in the first photo being 1.8 cm tall. The color is rich and pronounced throughout the piece, with all the crystals cleanly displayed. This is classic Copper Country material, mined before the Cliff Mine closed in 1887. Formerly in the exceptional collection of the Philadelphia Academy of Natural Sciences, and then briefly in the the well-known Copper suites of the collections of William Severance and of Michigan collector Bob Nowakowski

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Bidding History

Bid Amount Bid Time
$259 11/17/2022 6:27:00 pm (CST)
$249 11/17/2022 6:27:00 pm (CST)
$239 11/17/2022 6:25:08 pm (CST)
$229 11/17/2022 6:22:50 pm (CST)
$222 11/17/2022 6:22:50 pm (CST)
$219 11/17/2022 5:52:29 pm (CST)
$209 11/17/2022 5:52:29 pm (CST)
$187 11/17/2022 12:29:00 pm (CST)
$177 11/17/2022 12:29:00 pm (CST)
$168 11/15/2022 11:40:46 am (CST)
$158 11/15/2022 11:40:46 am (CST)
$148 11/11/2022 11:49:44 pm (CST)
$138 11/11/2022 11:49:44 pm (CST)
$137 11/11/2022 11:49:13 pm (CST)
$127 11/11/2022 11:49:13 pm (CST)
$77 11/11/2022 12:48:14 pm (CST)
$67 11/11/2022 12:48:14 pm (CST)
$50 11/11/2022 12:47:57 pm (CST)
$45 11/11/2022 12:47:57 pm (CST)
$30 11/11/2022 11:19:35 am (CST)
$25 11/11/2022 11:19:35 am (CST)
$10 11/10/2022 7:54:45 pm (CST)