Kidwellite with Strengite on Beraunite, Dufrenite and Rockbridgeite

Three Oak Gap, Polk Co., Arkansas, USA
Cabinet, 11.1 x 8.3 x 6.5 cm
Start Time: 01/16/2025 7:00:00 pm (CST)
End Time: 01/23/2025 6:30:00 pm (CST)
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Current Bid: $160
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Item Description

A rare, showy and large cabinet specimen with a hummocky surface of beraunite, dufrenite and rockbridgeite(?) covered with an olive green coating of kidwellite, a rare hydrated sodium iron phosphate hydroxide from Polk County, Arkansas. This has excellent coverage of kidwellite and is a large example for the species! Tiny spherical aggregates of strengite are found locally on the piece. This is an old specimen probably circa 1960s-70s; and was collected by Al Kidwell, local Texas collecting legend (whose large collection was dispersed locally). Valued $1200-1500. Donated to the MINDAT auction by The Arkenstone.

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Bidding History

Bid Amount Bid Time
$160 01/17/2025 9:03:56 pm (CST)
$150 01/17/2025 9:03:56 pm (CST)
$115 01/17/2025 9:03:36 pm (CST)
$105 01/17/2025 9:03:36 pm (CST)
$40 01/17/2025 9:00:46 pm (CST)
$35 01/17/2025 9:00:45 pm (CST)
$30 01/17/2025 12:13:05 pm (CST)
$25 01/17/2025 12:13:05 pm (CST)
$15 01/17/2025 11:47:34 am (CST)
$10 01/17/2025 10:00:07 am (CST)