Tourmaline (bi-colored crystals)

Santa Rosa Mine, Itambacuri, Minas Gerais, Brazil
Ex. Brian Kosnar
Toenail, 3.2 x 2.9 x 1.7 cm, 15.7 grams
Start Time: 09/26/2024 8:00:00 pm (CDT)
End Time: 10/03/2024 6:45:00 pm (CDT)
Auction Closed
Winning Bid: $200

Item Description

A classic old-time Tourmaline from the Santa Rosa Mine in Brazil featuring a predominant, sharp, lustrous, gemmy, prismatic crystal of Tourmaline showing a light greenish-blue color on the exterior, and a glowing pink hue at its core, associated with additional smaller Tourmalines showing the same bi-colored appearance. The piece is in good shape, though not completely pristine, but it is un-repaired and displays nice as you can see from the video.
Ex Brian Kosnar collection.

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Bidding History

Bid Amount Bid Time
$200 * 10/03/2024 6:35:14 pm (CDT)
$200 * 10/03/2024 6:35:14 pm (CDT)
$190 10/03/2024 6:30:42 pm (CDT)
$180 10/03/2024 6:28:09 pm (CDT)
$170 10/03/2024 6:00:57 pm (CDT)
$160 10/02/2024 7:55:27 pm (CDT)
$150 * 10/02/2024 7:55:21 pm (CDT)
$150 * 10/02/2024 7:55:21 pm (CDT)
$140 09/30/2024 4:09:36 pm (CDT)
$130 09/30/2024 4:09:36 pm (CDT)
$115 09/30/2024 1:53:22 pm (CDT)
$105 09/30/2024 1:53:22 pm (CDT)
$100 09/30/2024 1:52:55 pm (CDT)
$90 09/30/2024 1:52:55 pm (CDT)
$80 09/30/2024 1:52:50 pm (CDT)
$70 09/30/2024 1:52:50 pm (CDT)
$60 09/29/2024 9:51:57 pm (CDT)
$50 09/29/2024 9:51:57 pm (CDT)
$25 09/28/2024 7:18:56 pm (CDT)
$20 09/28/2024 8:27:28 am (CDT)
$15 09/28/2024 8:27:28 am (CDT)
$10 09/28/2024 12:44:12 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.