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Amethyst with unusual cross Hematite inclusion
- Irai, Rio Grande do Sul, Brazil
- Miniature, 5.0 x 4.9 x 3.3 cm
- Start Time: 08/16/2021 5:00:00 pm (CDT)
- End Time: 08/21/2021 6:00:00 pm (CDT)
- Auction Closed
- Winning Bid: $410
Item Description
This specimen is part of the 2021 Dallas Mineral Collecting Symposium benefit auction, with proceeds benefiting Mineralogical Record, Rocks & Minerals, Tucson Gem and Mineral Society, and mindat.org. Thanks to all of our participants!
Billing for this auction will occur on Monday, August 23, for payment using PayPal or a credit card. Shipping will be billed at cost.
A strange amethyst showing oriented internal growth patterns, resulting in a 1.5 x 1.4 cm cross shape within. What kind of internal order can cause such a pattern? is it a twinning? We really cannot explain it...never seen one quite like this. The crystal has inclusions of both hematite and a clay mineral, that create a colorful cloud floating within the surface 5 mm on one face, spilling over to some side faces. Centered perfectly within that floating veil of inclusions, is the clear zone that presents as a cross shape. We simply have no idea how that would form, as the crystal was forming itself. So, a strange quartz perhaps with a story to tell! Donation to Symposium Auction.
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Bidding History
Bid Amount | Bid Time |
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$410 | 08/21/2021 5:54:36 pm (CDT) |
$400 | 08/21/2021 5:54:36 pm (CDT) |
$379 | 08/21/2021 5:41:02 pm (CDT) |
$369 | 08/21/2021 5:41:02 pm (CDT) |
$343 | 08/21/2021 5:40:48 pm (CDT) |
$333 | 08/21/2021 5:40:48 pm (CDT) |
$279 | 08/21/2021 5:34:06 pm (CDT) |
$269 | 08/21/2021 5:34:06 pm (CDT) |
$225 | 08/21/2021 5:01:28 pm (CDT) |
$215 | 08/21/2021 3:19:53 pm (CDT) |
$210 | 08/21/2021 3:19:53 pm (CDT) |
$200 | 08/21/2021 3:19:44 pm (CDT) |
$190 | 08/21/2021 3:19:44 pm (CDT) |
$180 | 08/21/2021 3:19:33 pm (CDT) |
$170 | 08/21/2021 3:19:33 pm (CDT) |
$160 | 08/21/2021 2:12:09 pm (CDT) |
$150 | 08/21/2021 2:12:08 pm (CDT) |
$140 | 08/21/2021 2:12:02 pm (CDT) |
$130 | 08/21/2021 2:12:02 pm (CDT) |
$120 | 08/21/2021 11:10:18 am (CDT) |
$110 | 08/19/2021 9:43:09 pm (CDT) |
$100 | 08/18/2021 1:42:32 am (CDT) |