Hydroboracite on Anhydrite

Kohnstein Quarry, Nordhausen Dist., Thuringia, Germany
Cabinet, 12.7 x 10.3 x 5.5 cm
Start Time: 11/09/2023 7:00:00 pm (CST)
End Time: 11/16/2023 6:36:00 pm (CST)
Auction Closed
Winning Bid: $416

Item Description

Hydroboracite is a rare hydrated borate and this expressive large specimen is from a well-known inactive German anhydrite mine. A stunning, 11.7 x 8.3 cm, radial spray of very glassy, translucent, vitreous luster, elongated and flattened blades, to 7.2 cm dramatically dominates this showy and very rich piece. Smaller sprays are a fine complement on the massive anhydrite matrix. The Kohnstein Quarry is well-known for several rare borates and this is an outstanding large example of the radial style of hydroboracite.

Did You Know We Offer Custom Bases?

Learn More

Bidding History

Bid Amount Bid Time
$416 11/16/2023 6:31:52 pm (CST)
$406 11/16/2023 6:31:52 pm (CST)
$396 11/16/2023 6:31:41 pm (CST)
$386 11/16/2023 6:31:41 pm (CST)
$376 11/16/2023 6:31:00 pm (CST)
$366 11/16/2023 6:31:00 pm (CST)
$346 11/16/2023 6:29:37 pm (CST)
$336 11/16/2023 6:29:37 pm (CST)
$276 11/16/2023 6:27:26 pm (CST)
$266 11/16/2023 6:27:26 pm (CST)
$125 11/16/2023 6:23:08 pm (CST)
$115 11/16/2023 6:23:07 pm (CST)
$95 11/12/2023 4:00:34 am (CST)
$85 11/12/2023 4:00:34 am (CST)
$70 11/10/2023 10:39:21 pm (CST)
$60 11/10/2023 10:39:21 pm (CST)
$50 11/10/2023 10:39:06 pm (CST)
$45 11/10/2023 10:39:06 pm (CST)
$40 11/10/2023 10:39:01 pm (CST)
$35 11/10/2023 10:39:01 pm (CST)
$25 11/10/2023 10:38:54 pm (CST)
$20 11/10/2023 10:38:54 pm (CST)
$10 11/10/2023 5:49:28 pm (CST)