Brucite in Biotite (VERY RARE) Kay Robertson Coll.

Brandberg Area, Daures Constituency, Erongo Region, Namibia
Small Cabinet, 9.7 x 6.5 x 0.2 cm
Start Time: 07/02/2021 1:00:00 pm (CDT)
End Time: 07/08/2021 6:40:00 pm (CDT)
Auction Closed
Winning Bid: $605
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Item Description

Super RARE combination material from the Brandberg Area, famous for exceptional amethyst, smoky quartz and prehnite specimens. A 2.3 cm pod of glassy, translucent Brucite is centrally placed only on the front of the cut rectangular book of pearlescent greenish-black biotite plates. mindat does not list Brucite for the Brandberg and there are NO examples of Biotite in the locality Photo Gallery. Ex Kay Robertson Collection # 5340 and acquired in 1969 from Al McGuiness. 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). She passed away in 2020. Very rare, perhaps UNIQUE old combination material from the locality.

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Bidding History

Bid Amount Bid Time
$605 07/08/2021 6:34:51 pm (CDT)
$600 07/08/2021 6:34:51 pm (CDT)
$550 07/08/2021 6:34:26 pm (CDT)
$525 07/08/2021 6:34:26 pm (CDT)
$460 07/08/2021 6:33:58 pm (CDT)
$450 07/08/2021 6:33:58 pm (CDT)
$435 07/08/2021 6:29:48 pm (CDT)
$425 07/08/2021 6:29:48 pm (CDT)
$311 07/08/2021 6:28:06 pm (CDT)
$301 07/08/2021 6:28:06 pm (CDT)
$265 07/08/2021 6:25:45 pm (CDT)
$255 07/08/2021 6:25:45 pm (CDT)
$235 07/08/2021 6:25:26 pm (CDT)
$225 07/08/2021 6:25:26 pm (CDT)
$195 07/08/2021 6:24:40 pm (CDT)
$185 07/08/2021 6:24:40 pm (CDT)
$90 07/08/2021 10:37:17 am (CDT)
$80 07/08/2021 10:37:17 am (CDT)
$70 07/08/2021 10:09:26 am (CDT)
$60 07/08/2021 10:09:26 am (CDT)
$50 07/07/2021 8:17:24 am (CDT)
$45 07/07/2021 8:17:24 am (CDT)
$40 07/07/2021 8:17:12 am (CDT)
$35 07/07/2021 8:17:12 am (CDT)
$30 07/05/2021 8:41:48 pm (CDT)
$25 07/05/2021 8:41:48 pm (CDT)
$20 07/05/2021 7:38:32 pm (CDT)
$15 07/05/2021 2:47:01 pm (CDT)
$10 07/03/2021 10:22:39 am (CDT)