Calcite (Fluorescent) on Colemanite - rare find

U.S. Borax open pit, Boron, Kern Co., California, USA
Small Cabinet, 5.7 x 4.2 x 3.5 cm
Start Time: 05/20/2021 6:30:00 pm (CDT)
End Time: 05/27/2021 6:30:00 pm (CDT)
Auction Closed
Winning Bid: $280

Item Description

Lovely combination piece featuring rounded and unusual balls of orange Calcite resting on a matrix of Colemanite crystals, from the famous U.S. Borax open pit in Boron. This is a very aesthetic specimen, and the Calcites, which range up to 2.3 cm, also have a soft, cream-colored fluorescence. Definitely one of the better of these combination that I have seen, especially for the noteworthy development of the Calcite. In the past, I was told that Jim Minette personally collected this pocket when he was mine manager here back in the 1960s-1970s. From the extensive collection of Bob Reynolds, who cherished both minerals and fossils as he collected. Bob is a prolific author and has had several curating positions in museums.

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Bidding History

Bid Amount Bid Time
$280 05/27/2021 6:15:22 pm (CDT)
$270 05/27/2021 6:15:22 pm (CDT)
$260 05/27/2021 6:10:28 pm (CDT)
$250 05/27/2021 6:10:28 pm (CDT)
$240 05/27/2021 5:00:14 pm (CDT)
$230 05/27/2021 5:00:14 pm (CDT)
$210 05/27/2021 4:59:43 pm (CDT)
$200 05/27/2021 4:59:43 pm (CDT)
$185 05/27/2021 12:36:21 pm (CDT)
$175 05/27/2021 12:36:21 pm (CDT)
$160 05/27/2021 12:36:06 pm (CDT)
$150 05/27/2021 12:36:06 pm (CDT)
$121 05/24/2021 5:54:49 pm (CDT)
$111 05/24/2021 5:54:49 pm (CDT)
$110 05/22/2021 11:19:31 am (CDT)
$100 05/22/2021 11:19:31 am (CDT)
$98 05/22/2021 11:09:04 am (CDT)
$88 05/22/2021 11:09:04 am (CDT)
$48 05/22/2021 5:57:33 am (CDT)
$43 05/22/2021 5:57:33 am (CDT)
$38 05/22/2021 5:57:23 am (CDT)
$33 05/22/2021 5:57:23 am (CDT)
$15 05/21/2021 10:23:06 am (CDT)
$10 05/21/2021 12:41:16 am (CDT)