Ulexite

U.S. Borax open pit, Boron, Kern Co., California, USA
Cabinet, 11.8 x 11.3 x 3.7 cm
Start Time: 10/12/2023 7:00:00 pm (CDT)
End Time: 10/19/2023 6:30:00 pm (CDT)
Auction Closed
Winning Bid: $51

Item Description

A uniquely shaped "clamshell" ulexite from the famous U.S. Borax open pit mine with a striking ulexite seam projecting outward. The shimmering acicular crystals resemble a clamshell, giving the piece its name. "These were found in the mud/shale at the top of the tunnel near the big portal to the Boron underground mine that opened into the bottom of the open pit (Rock Currier). These RARE and fantastic-looking old-timers date to the 1960s. Acicular blocky ulexite, when cut and polished perpendicular to the long axis of the crystals is known as TV rock, for its fiber optic effect. Ex Cook Collection. We feel very lucky to have picked up the large collection of Bill and Anne Cook of Cleveland, recently. It is a tribute to their long efforts, how many interesting minerals and old localities were preserved and carefully labeled so you can see them now. Bill and Anne collected for at least 60 years. These fascinating old-timers are RARELY on the market today.

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Bidding History

Bid Amount Bid Time
$51 * 10/19/2023 5:05:56 pm (CDT)
$51 * 10/19/2023 5:05:56 pm (CDT)
$46 10/19/2023 12:42:29 pm (CDT)
$41 10/19/2023 11:40:15 am (CDT)
$36 * 10/19/2023 11:40:08 am (CDT)
$36 * 10/19/2023 11:40:08 am (CDT)
$31 10/12/2023 10:28:48 pm (CDT)
$26 10/12/2023 10:28:48 pm (CDT)
$10 10/12/2023 7:59:29 pm (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.