Umangite with Malachite ex Paar, Vajdak

San Francisco mine, Sierra de Famatina, La Rioja Province, Argentina
Small Cabinet, 6.5 x 5.5 x 4.0 cm
Start Time: 02/25/2021 4:30:00 pm (CST)
End Time: 03/04/2021 6:30:00 pm (CST)
Auction Closed
Winning Bid: $90
Winning Bidder: Private Bidder

Item Description

A rich scientifically important specimen with provenance, as the Umangite group and associated minerals are quite interesting. Iridescent, violet-red-blue umangite occurs as anhedral aggregates from <1mm to nearly 1cm across interstitial to white to green-blue malachite and malachite-stained white calcite in a veinlet on a very fine-grained, grayish matrix. Pequa Rare Minerals' Josef Vajdak label. Ex. Werner Paar collection - and since he is the world's expert on this locality and such species, it is quite legitimate. He was on several papers with mineral identifications for this important, complex locality. Obtained in the purchase of Vajdak's collection, and found to trace back to one of his exchanges with Dr Werner Paar. For what it is, a very important research specimen

Bidding History

Bidder Bid Amount Bid Time
Private Bidder $90 03/04/2021 5:57:30 pm (CST)
Private Bidder $80 03/04/2021 5:50:55 am (CST)
Private Bidder $77 03/04/2021 5:50:55 am (CST)
Private Bidder $33 03/03/2021 8:35:03 pm (CST)
Private Bidder $28 03/03/2021 8:35:03 pm (CST)
Private Bidder $20 02/26/2021 10:52:42 am (CST)
Private Bidder $15 02/26/2021 10:52:42 am (CST)
Private Bidder $10 02/26/2021 1:53:13 am (CST)