Kidwellite with Strengite (rare classic material)

Coon Creek Mine (York Mine), Shady, Polk County, Arkansas
Miniature, 4.6 x 3.2 x 1.9 cm
Start Time: 02/04/2021 8:00:00 pm (CST)
End Time: 02/11/2021 6:50:00 pm (CST)
Auction Closed
Winning Bid: $147

Item Description

Here we have a wonderful miniature specimen of the Kidwellite - a rare hydrated sodium iron phosphate - from the premier locality for the species. A layer of gorgeous bubbly, velvety, soft olive green to brown-green colored spherical aggregates of Kidwellite are highlighted by beautiful translucent purple Strengite groups measuring up to 3 mm. If you look on the base and back of the specimen, you can see underneath the Kidwellite are layers of a reddish-brown minerals (most likely Beraunite and / or Dufrénite) along with black Rockbridgeite. This combination of purple Strengite on Kidwellite is rare from the locality, and notably eye-catching. If you collect phosphates or minerals of Arkansas, do not let this fantastic old timer pass you by. For reference, nothing has come out of this locality for decades as according to mindat.org it was "Restarted from earlier workings in 1956 & closed in 1959. Restarted 1972 and again in 1986 for specimens". Priced at $800 in the inventory.

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Bidding History

Bid Amount Bid Time
$147 02/11/2021 6:44:52 pm (CST)
$137 02/11/2021 6:44:52 pm (CST)
$127 02/11/2021 6:07:14 pm (CST)
$117 02/09/2021 10:07:06 am (CST)
$107 * 02/09/2021 10:06:55 am (CST)
$107 * 02/09/2021 10:06:54 am (CST)
$97 02/09/2021 2:56:28 am (CST)
$87 02/09/2021 2:56:28 am (CST)
$66 02/08/2021 7:54:37 am (CST)
$56 02/06/2021 6:42:13 pm (CST)
$50 02/06/2021 6:42:13 pm (CST)
$46 02/06/2021 5:22:22 pm (CST)
$41 02/06/2021 5:22:22 pm (CST)
$10 02/06/2021 12:33:03 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.