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Copper in Datolite nodule slice (Robertson Coll.)
- Copper Country, Keweenaw Peninsula, Michigan, USA
- Small Cabinet, 6.1 x 3.7 x 0.8 cm
- Start Time: 08/15/2022 7:00:00 pm (CDT)
- End Time: 08/25/2022 6:30:00 pm (CDT)
- Auction Closed
- Winning Bid: $90
Item Description
Patches of native copper blebs are nicely scattered in the sawed and polished end slice of this classic datolite and copper nodule combination from historic Copper Country. Copper in datolite nodules is highly desired from the Keweenaw. Ex Kay Robertson Collection # 2738 and acquired in the mid-1960s. Kay was 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). She passed away in 2020. An old-time classic from Copper Country.
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Bidding History
| Bid Amount | Bid Time |
|---|---|
| $90 | 08/25/2022 5:27:45 pm (CDT) |
| $80 | 08/23/2022 7:36:45 pm (CDT) |
| $70 | 08/23/2022 7:32:35 pm (CDT) |
| $60 | 08/20/2022 10:21:31 am (CDT) |
| $50 * | 08/20/2022 10:21:16 am (CDT) |
| $50 * | 08/20/2022 10:21:16 am (CDT) |
| $45 | 08/20/2022 10:07:57 am (CDT) |
| $40 | 08/19/2022 11:39:23 am (CDT) |
| $35 | 08/19/2022 11:39:15 am (CDT) |
| $32 | 08/19/2022 11:39:15 am (CDT) |
| $27 | 08/18/2022 2:57:38 pm (CDT) |
| $22 | 08/18/2022 2:57:38 pm (CDT) |
| $10 | 08/18/2022 11:41:54 am (CDT) |
* Proxy Bid Battle: In the event of two customers inputting matching proxy bids, the leading bid goes to the earliest of the two proxy bids. Tie winners are shown in bold.