Boltwoodite on Calcite ex Jack Halpern Collection

Goanikontes Claim, Erongo Region, Namibia
Small Cabinet, 6.2 x 3.8 x 2.5 cm
Start Time: 02/18/2021 12:30:00 pm (CST)
End Time: 02/25/2021 6:50:00 pm (CST)
Auction Closed
Winning Bid: $2,600

Item Description

Two outstanding clusters of Boltwoodite, a rare potassium, sodium, uranium silicate, literally explode like fireworks against the dark Calcite matrix. The deep, rich orange color is excellent, and the luster on the acicular crystals is good. Such deep color and completeness to the large "balls" of crystals is almost unheard of from the Goanikontes Claim, let alone any other location. Also nearly unheard of are complete sprays like this reaching up to an amazing 1.4 cm across. This is a SUPERB small cabinet specimen of importance for the species, valued $2000. There are numerous references to Jack and his collection in print, but perhaps a good tour of the collection and its history will help give perspective on just how good, and important, this collection is: https://www.irocks.com/the-jack-halpern-collection

Did You Know We Offer Custom Bases?

Learn More

Bidding History

Bid Amount Bid Time
$2,600 02/25/2021 6:43:12 pm (CST)
$2,555 02/25/2021 6:43:12 pm (CST)
$2,550 02/25/2021 6:38:43 pm (CST)
$2,500 02/25/2021 6:38:43 pm (CST)
$2,450 02/25/2021 6:38:16 pm (CST)
$2,400 02/25/2021 6:38:16 pm (CST)
$2,255 02/25/2021 6:31:54 pm (CST)
$2,205 02/25/2021 6:31:54 pm (CST)
$2,155 02/25/2021 6:27:30 pm (CST)
$2,105 02/25/2021 6:27:30 pm (CST)
$2,055 02/25/2021 6:25:53 pm (CST)
$2,005 02/25/2021 6:25:53 pm (CST)
$1,973 02/25/2021 6:22:41 pm (CST)
$1,923 02/25/2021 6:22:41 pm (CST)
$1,861 02/25/2021 3:04:04 pm (CST)
$1,811 02/25/2021 3:03:08 pm (CST)
$1,800 02/25/2021 3:03:08 pm (CST)
$1,603 02/25/2021 2:16:43 pm (CST)
$1,553 02/25/2021 2:16:43 pm (CST)
$1,550 02/25/2021 2:12:10 pm (CST)
$1,500 02/25/2021 1:24:05 pm (CST)
$1,467 02/25/2021 1:24:05 pm (CST)
$1,368 02/25/2021 11:51:43 am (CST)
$1,318 02/25/2021 11:51:43 am (CST)
$1,234 02/25/2021 11:51:02 am (CST)
$1,184 02/25/2021 11:51:02 am (CST)
$1,128 02/24/2021 9:31:13 pm (CST)
$1,078 02/24/2021 9:31:13 pm (CST)
$1,050 02/24/2021 9:09:56 pm (CST)
$1,000 02/24/2021 9:09:56 pm (CST)
$999 02/24/2021 8:14:58 pm (CST)
$974 02/24/2021 8:14:58 pm (CST)
$848 02/24/2021 7:58:44 pm (CST)
$823 02/24/2021 7:58:44 pm (CST)
$739 02/24/2021 7:57:49 pm (CST)
$714 02/24/2021 7:57:49 pm (CST)
$642 02/24/2021 7:04:49 pm (CST)
$617 02/24/2021 7:04:49 pm (CST)
$525 02/23/2021 3:37:58 pm (CST)
$500 02/23/2021 3:37:58 pm (CST)
$480 02/22/2021 1:39:25 pm (CST)
$470 02/20/2021 11:09:26 am (CST)
$460 02/19/2021 7:36:29 am (CST)
$450 * 02/19/2021 7:36:08 am (CST)
$450 * 02/19/2021 7:36:08 am (CST)
$350 02/19/2021 2:52:48 am (CST)
$340 02/19/2021 2:52:48 am (CST)
$330 02/19/2021 2:52:42 am (CST)
$320 02/19/2021 2:52:42 am (CST)
$310 02/19/2021 2:50:47 am (CST)
$300 02/19/2021 2:50:47 am (CST)
$290 02/19/2021 2:50:42 am (CST)
$280 02/19/2021 2:50:42 am (CST)
$270 02/19/2021 2:50:37 am (CST)
$260 02/19/2021 2:50:37 am (CST)
$250 02/19/2021 2:50:32 am (CST)
$240 02/19/2021 2:50:32 am (CST)
$230 02/19/2021 2:50:27 am (CST)
$220 02/19/2021 2:50:27 am (CST)
$210 02/19/2021 1:04:10 am (CST)
$200 02/19/2021 1:04:10 am (CST)
$165 02/18/2021 10:59:25 pm (CST)
$155 02/18/2021 10:59:25 pm (CST)
$130 02/18/2021 3:48:40 pm (CST)
$120 02/18/2021 3:48:40 pm (CST)
$110 02/18/2021 2:02:28 pm (CST)
$100 02/18/2021 2:02:28 pm (CST)
$87 02/18/2021 2:02:07 pm (CST)
$77 02/18/2021 2:02:07 pm (CST)
$15 02/18/2021 1:57:43 pm (CST)
$10 02/18/2021 1:35:31 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.