Pyrite ps. Ammonite (Late Cretaceous)

South Dakota
Miniature, 4.6 x 3.7 x 1.8 cm
Start Time: 06/16/2022 7:00:00 pm (CDT)
End Time: 06/23/2022 6:40:00 pm (CDT)
Auction Closed
Winning Bid: $190

Item Description

Fascinating and exceptional two-sided fossilized ammonite from South Dakota. One side of the very well-preserved and complete fossil is dramatically preferentially pyritized and polished. The striking, sculptural chambers are filled with sparkly microcrystalline pyrite. The beautiful, colorful and finely detailed reverse fossil shell is covered with opal-like iridescent ammolite (an organic gemstone) comprised primarily of Aragonite. This outstanding ammonite is Late Cretaceous age (101-66 MYA) and is of the Hoploscaphites genus.

Did You Know We Offer Custom Bases?

Learn More

Bidding History

Bid Amount Bid Time
$190 06/23/2022 6:32:18 pm (CDT)
$180 06/23/2022 6:29:36 pm (CDT)
$170 06/23/2022 6:29:17 pm (CDT)
$165 06/23/2022 6:29:17 pm (CDT)
$160 06/23/2022 6:28:53 pm (CDT)
$150 06/23/2022 6:28:28 pm (CDT)
$142 06/23/2022 6:28:28 pm (CDT)
$130 06/23/2022 6:27:49 pm (CDT)
$120 06/23/2022 6:26:58 pm (CDT)
$110 06/23/2022 6:26:50 pm (CDT)
$103 06/23/2022 6:26:50 pm (CDT)
$93 06/23/2022 5:55:58 pm (CDT)
$83 06/23/2022 5:53:57 pm (CDT)
$75 06/23/2022 5:53:57 pm (CDT)
$63 06/23/2022 5:12:31 pm (CDT)
$53 06/22/2022 7:26:18 am (CDT)
$48 06/20/2022 8:19:24 am (CDT)
$45 06/20/2022 8:19:24 am (CDT)
$25 06/18/2022 9:55:34 pm (CDT)
$20 06/18/2022 12:57:20 pm (CDT)
$15 06/18/2022 12:57:20 pm (CDT)
$10 06/18/2022 1:56:43 am (CDT)