Chrysocolla pseudmorph after Gypsum (RARE locality specimen)

Ojuela Mine, Mapimi, Durango, Mexico
Small Cabinet, 8.3 x 6.3 x 5.7 cm
Start Time: 11/09/2023 6:45:00 pm (CST)
End Time: 11/16/2023 6:45:00 pm (CST)
Auction Closed
Winning Bid: $160

Item Description

I have seen thousands of specimens from the Ojuela Mine over the years, but I can honestly say that I've never seen one like this. This piece features beautiful green-blue Chrysocolla, which has formed pseudomorphs after preexisting prismatic Gypsum crystals, which measure up to 2.0 cm long, sitting on oxidized iron matrix. I can see a transition from the green-blue color of the Chrysocolla into an almost white/colorless hue, so perhaps it is Quartz/Chalcedony with a bit of Chrysocolla coloring it underneath in areas. None the less, the piece is certainly rare for the locality, distinctive and a must-have for any fan of pseudomorphs, Mexican minerals or the Ojuela Mine in general. A few compressed rhombic crystals of Calcite with highly "greasy" luster can be seen for a nice touch. I can't find any real damage, outside of the periphery of the piece where it was removed from the pocket wall. Valued $1,000.

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Bidding History

Bid Amount Bid Time
$160 11/16/2023 5:02:57 pm (CST)
$150 11/16/2023 5:02:57 pm (CST)
$135 11/16/2023 2:56:40 pm (CST)
$125 11/16/2023 2:56:40 pm (CST)
$115 11/16/2023 2:56:25 pm (CST)
$105 11/16/2023 2:56:25 pm (CST)
$95 11/16/2023 2:56:17 pm (CST)
$85 11/16/2023 2:56:17 pm (CST)
$75 11/15/2023 4:14:52 pm (CST)
$65 11/15/2023 4:14:52 pm (CST)
$60 11/11/2023 8:43:04 pm (CST)
$50 * 11/11/2023 8:42:51 pm (CST)
$50 * 11/11/2023 8:42:51 pm (CST)
$15 11/10/2023 2:42:09 pm (CST)
$10 11/09/2023 8:48:29 pm (CST)
* 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.