Vonsenite (very rare) (ex Kay Robertson Collection)

Mt Vesuvius, Somma-Vesuvius Complex, Naples, Campania, Italy
Small Cabinet, 5.3 x 2.8 x 2.1 cm
Start Time: 02/06/2020 6:45:00 pm (CST)
End Time: 02/13/2020 6:45:00 pm (CST)
Auction Closed
Winning Bid: $28

Item Description

Vonsenite is a very rare iron borate species, part of the Ludwigite group. For reference, this specimen is labeled as "Ludwigite - Vonsenite", but Ludwigite has never been reported from Mt Vesuvius, so it's certainly Vonsenite. This piece hosts micro "needles" of semi-metallic, silvery-black colored Vonsenite sitting on Sanidine volcanic matrix. We have photographed the piece with a Canon MP-E 65 mm macro lens to better illustrate the quality. A really cool and hard to find rarity from this world famous locality! Ex Kay Robertson Collection (#10072). Kay is a prominent California collector, who specialized in European classics (see the article in the March-April, 2007 Mineralogical Record and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017).

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Bidding History

Bid Amount Bid Time
$28 02/10/2020 8:19:41 am (CST)
$23 02/10/2020 8:19:25 am (CST)
$20 02/10/2020 8:19:24 am (CST)
$15 02/08/2020 10:30:06 pm (CST)
$10 02/07/2020 7:58:08 am (CST)