Copper & Silver halfbreed (old classic) Kay Robertson Coll.

Houghton Co., Michigan
6.8 x 3.4 x 2.8 cm
Start Time: 01/09/2020 6:30:00 pm (CST)
End Time: 01/16/2020 6:55:00 pm (CST)
Auction Closed
Winning Bid: $293

Item Description

Shapely and desirable old-time copper and silver from Copper Country. Called "halfbreeds", this sculptural rounded piece looks like a "foot" with ankle. Silver is confined to the "toe" and "sole" of one side of the mostly massive copper specimen. Areas of dark green malachite and olive-green epidote are a typical and excellent contrast. Ex Kay Robertson Collection # 5454 and acquired from the Shale's in the late 1960s. Kay is a prominent California collector, who specialized in European classics (see the article in the March-April, 2007 Mineralogical Record and the 50+ page article in the German Magazine "Mineralien-Welt" November-December 2017). Rich and hefty silver and copper ore at 166 grams mass. A classic halfbreed nugget.

Bidding History

Bidder Bid Amount Bid Time
argo $293 01/16/2020 6:45:45 pm (CST)
gorski $283 01/16/2020 6:45:44 pm (CST)
argo $251 01/16/2020 6:45:27 pm (CST)
gorski $241 01/16/2020 6:45:26 pm (CST)
argo $218 01/16/2020 6:43:02 pm (CST)
gorski $208 01/16/2020 6:43:01 pm (CST)
gorski $203 01/16/2020 6:35:14 pm (CST)
argo $193 01/16/2020 6:34:59 pm (CST)
gorski $191 01/16/2020 6:34:58 pm (CST)
argo $179 01/16/2020 6:25:06 pm (CST)
tubman $169 01/16/2020 6:25:06 pm (CST)
tubman $163 01/16/2020 6:24:35 pm (CST)
argo $153 01/16/2020 6:24:33 pm (CST)
tubman $127 01/16/2020 6:23:21 pm (CST)
argo $117 01/16/2020 6:23:19 pm (CST)
tubman $87 01/16/2020 7:43:29 am (CST)
argo $77 01/15/2020 8:32:08 am (CST)
rkrocks $76 01/15/2020 8:32:08 am (CST)
rkrocks $63 01/14/2020 10:24:27 pm (CST)
tmr $53 01/14/2020 10:24:26 pm (CST)
tmr $43 01/11/2020 6:23:16 pm (CST)
Gwani $40 01/11/2020 6:23:16 pm (CST)
Gwani $10 01/11/2020 7:38:22 am (CST)