Dravite Tourmaline (ex Rolando Gioia Collection)

Pedra Preta Pit, Serra das Éguas, Brumado, Bahia, Brazil
Small Cabinet, 5.3 x 4.8 x 4.3 cm
Start Time: 05/26/2022 9:00:00 pm (CDT)
End Time: 06/02/2022 6:45:00 pm (CDT)
Auction Closed
Winning Bid: $575

Item Description

A rarely seen matrix specimen of Dravite Tourmaline from the Pedra Preta Pit in Brumado, Brazil. For reference, this area is one of the world's largest Magnesite deposits. This piece is filled with rather lustrous, sharp, well-formed, trigonal crystals of a rich orange-brown hue, with minor associated white/colorless Magnesite on a dark blue colored matrix. The largest Dravite measures 1.5 cm There is some visible damage, so the piece is not pristine, but it's a really cool and unusual example of an uncommon Tourmaline species from a classic locality. Please note that these are confirmed Dravite, and not Fluor-uvite or Uvite. From the collection of Rolando Gioia (a contributor to definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil").

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Bidding History

Bid Amount Bid Time
$575 06/02/2022 6:36:24 pm (CDT)
$550 * 06/02/2022 6:36:18 pm (CDT)
$550 * 06/02/2022 6:36:18 pm (CDT)
$525 06/02/2022 6:35:11 pm (CDT)
$500 06/02/2022 6:32:35 pm (CDT)
$490 * 06/02/2022 6:32:30 pm (CDT)
$490 * 06/02/2022 6:32:30 pm (CDT)
$480 06/02/2022 6:30:46 pm (CDT)
$470 06/02/2022 6:25:04 pm (CDT)
$460 * 06/02/2022 6:24:58 pm (CDT)
$460 * 06/02/2022 6:24:58 pm (CDT)
$450 06/02/2022 6:23:22 pm (CDT)
$440 06/02/2022 5:47:58 pm (CDT)
$430 * 06/02/2022 5:47:52 pm (CDT)
$430 * 06/02/2022 5:47:52 pm (CDT)
$420 06/02/2022 5:14:21 pm (CDT)
$410 06/02/2022 4:54:43 pm (CDT)
$400 06/02/2022 2:51:29 pm (CDT)
$390 06/02/2022 12:46:51 am (CDT)
$380 * 06/02/2022 12:46:46 am (CDT)
$380 * 06/02/2022 12:46:46 am (CDT)
$370 06/02/2022 12:46:39 am (CDT)
$360 06/02/2022 12:46:39 am (CDT)
$350 06/02/2022 12:46:33 am (CDT)
$340 06/02/2022 12:46:33 am (CDT)
$330 06/01/2022 11:54:08 am (CDT)
$320 06/01/2022 11:37:29 am (CDT)
$310 * 06/01/2022 11:37:24 am (CDT)
$310 * 06/01/2022 11:37:24 am (CDT)
$300 06/01/2022 11:37:18 am (CDT)
$290 06/01/2022 11:37:18 am (CDT)
$280 06/01/2022 11:37:09 am (CDT)
$270 06/01/2022 11:37:09 am (CDT)
$260 06/01/2022 3:21:14 am (CDT)
$250 05/31/2022 2:36:54 pm (CDT)
$240 * 05/31/2022 2:36:49 pm (CDT)
$240 * 05/31/2022 2:36:49 pm (CDT)
$230 05/31/2022 2:36:44 pm (CDT)
$220 05/31/2022 2:36:44 pm (CDT)
$210 05/31/2022 2:36:40 pm (CDT)
$200 05/31/2022 2:36:40 pm (CDT)
$190 05/31/2022 2:36:31 pm (CDT)
$180 05/31/2022 2:36:30 pm (CDT)
$170 05/31/2022 2:36:24 pm (CDT)
$160 05/31/2022 2:36:24 pm (CDT)
$150 05/31/2022 2:36:17 pm (CDT)
$140 05/31/2022 2:36:17 pm (CDT)
$130 05/29/2022 5:24:57 pm (CDT)
$120 05/29/2022 1:04:46 pm (CDT)
$110 05/29/2022 1:04:41 pm (CDT)
$100 05/29/2022 1:04:41 pm (CDT)
$90 05/29/2022 1:04:25 pm (CDT)
$80 05/29/2022 1:04:25 pm (CDT)
$70 05/29/2022 1:04:19 pm (CDT)
$60 05/29/2022 1:04:19 pm (CDT)
$50 05/29/2022 1:04:15 pm (CDT)
$45 05/29/2022 1:04:15 pm (CDT)
$40 05/29/2022 1:04:06 pm (CDT)
$35 05/29/2022 1:04:06 pm (CDT)
$30 05/29/2022 1:04:01 pm (CDT)
$25 05/29/2022 1:04:01 pm (CDT)
$20 05/29/2022 1:03:55 pm (CDT)
$15 05/29/2022 1:03:55 pm (CDT)
$10 05/28/2022 5:54:57 pm (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.