Pyrite Replacing Ammonite Fossil

Mikhailovsky Quarry, Mikhailov, Ryazan Oblast, Russia
Small Cabinet, 5.7 x 4.4 x 1.6 cm
Start Time: 05/26/2022 9:00:00 pm (CDT)
End Time: 06/02/2022 6:30:00 pm (CDT)
Auction Closed
Winning Bid: $110
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Item Description

A fantastic and high quality example of the elusive Pyritized Ammonite fossils from the Mikhailovsky Quarry in Russia. The piece is what I would call a "hoppered" or skeletal example with large hollow open chambers, but the supporting edges and exterior shell are completely replaced by tiny crystalline Pyrite. The piece has been cut and lightly polished to better show off the internal beauty. This is one of those cool specimens that is a mineral, a fossil and a pseudomorph all in one!

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Bidding History

Bid Amount Bid Time
$110 06/02/2022 6:02:10 pm (CDT)
$100 * 06/02/2022 5:58:38 pm (CDT)
$100 * 06/02/2022 5:58:38 pm (CDT)
$90 05/30/2022 10:32:52 am (CDT)
$80 05/30/2022 10:32:52 am (CDT)
$70 05/30/2022 10:32:45 am (CDT)
$60 05/30/2022 10:32:45 am (CDT)
$50 05/30/2022 10:32:39 am (CDT)
$45 05/30/2022 10:32:39 am (CDT)
$40 05/30/2022 10:32:32 am (CDT)
$35 05/30/2022 10:32:32 am (CDT)
$30 05/29/2022 4:38:41 pm (CDT)
$25 05/29/2022 4:38:41 pm (CDT)
$20 05/29/2022 4:38:29 pm (CDT)
$15 05/29/2022 4:38:29 pm (CDT)
$10 05/28/2022 8:48:09 am (CDT)
* 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.