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Thursday Natural History Select Auction

Recent Bid Activity for
Thursday Natural History Select Auction #212618

Auction Home View Lots Total Current Bids: $3,966 Bids + Registered Phone Bidders: 91 

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Lot Number Description Current Bid Bid Time
80020 Gemstone: Blue Topaz - 9.53 Cts. Brazil 15.00 x 11.01 x 7.97 mm ... $20 04/28/2026 11:42:38 PM CT
80020 Gemstone: Blue Topaz - 9.53 Cts. Brazil 15.00 x 11.01 x 7.97 mm ... $10 04/28/2026 11:42:19 PM CT
80014 Gemstone: Opal - 4.38 Cts. Wollo Mountains Amhara Region Northwestern Ethiopia 10.29 x 10.04 x 7.50 mm ... $15 04/28/2026 11:41:02 PM CT
80022 Gemstone: Amethyst - 23.90 Cts. Brazil 21.42 x 16.73 x 12.37 mm ... $5 04/28/2026 08:43:22 PM CT
80049 Libyan Desert Glass Libyan Desert Glass Area Great Sand Sea Western Desert, Egypt 2.43 x 1.37 x 1.09 inche... $1 04/28/2026 08:15:01 PM CT
80047 Polished Ammonite Fossil Cleoniceras sp. Cretaceous Madagascar 5.86 x 4.97 x 1.28 inches (14.89 x 12.63 x ... $1 04/28/2026 08:15:01 PM CT
80045 Polished Zarinite Sphere Russia 2.88 inches (7.31 cm) in diameter ... $1 04/28/2026 08:15:01 PM CT
80043 Polished Chrysocolla Sphere Mexico 1.54 inches (3.92 cm) in diameter ... $1 04/28/2026 08:15:01 PM CT
80036 Polished "Noble" Serpentine Free-Form Wild Turkey Mine Washington, USA 4.36 x 2.48 x 2.39 inches (11.07 x 6.31 ... $1 04/28/2026 08:15:01 PM CT
80035 Polished Chrysocolla & Malachite Free-Form DR Congo 5.26 x 4.83 x 2.59 inches (13.36 x 12.28 x 6.57 cm) ... $1 04/28/2026 08:15:01 PM CT
80033 Polished Prehnite End Cut China 6.89 x 4.69 x 2.74 inches (17.50 x 11.90 x 6.97 cm) ... $1 04/28/2026 08:15:01 PM CT
80032 Polished Banded Calcite Obelisk Presumed Arizona, USA 9.13 x 1.46 x 1.41 inches (23.20 x 3.70 x 3.58 cm) ... $1 04/28/2026 08:15:01 PM CT
80031 Polished Amethyst Slab Brazil 7.87 x 5.04 x 0.41 inches (20.00 x 12.80 x 1.05 cm) ... $1 04/28/2026 08:15:01 PM CT
80029 Polished Onyx Wine Bottle Holder Mexico 10.12 x 2.27 x 0.98 inches (25.70 x 5.77 x 2.49 cm) ... $1 04/28/2026 08:15:01 PM CT
80025 Gemstone: Rhodolite Garnet - 5.80 Cts. Umba Valley Tanga Region Eastern Tanzania 11.87 x 10.30 x 6.01 mm... $1 04/28/2026 08:15:01 PM CT
80024 Gemstone: Montana Agate - 24.50 Cts. Montana, USA 34.80 x 18.73 x 4.61 mm ... $1 04/28/2026 08:15:01 PM CT
80022 Gemstone: Amethyst - 23.90 Cts. Brazil 21.42 x 16.73 x 12.37 mm ... $1 04/28/2026 08:15:01 PM CT
80021 Gemstone: Mondo Quartz - 14.78 Cts. Tanzania ... $1 04/28/2026 08:15:01 PM CT
80019 Gemstone: Montana Agate - 32.70 Cts. Montana, USA 27.39 x 15.75 x 10.58 mm ... $1 04/28/2026 08:15:01 PM CT
80017 Gemstone: Apatite - 7.99 Cts. Mexico 13.34 x 11.18 x 8.37 mm ... $1 04/28/2026 08:15:01 PM CT
80015 Gemstone: Opal - 8.04 Cts. Wollo Mountains Amhara Region Northwestern Ethiopia 14.89 x 13.04 x 7.63 mm ... $1 04/28/2026 08:15:01 PM CT
80009 Gemstone: Ammolite - 6.98 Cts. Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 21.76 x... $1 04/28/2026 08:15:01 PM CT
80005 Muonionalusta Meteorite Ring Iron, IVA Norrbottens, Sweden - (67° 48'N, 23° 6'E) Found: 1906 0.85 x 0.82 x... $1 04/28/2026 08:15:01 PM CT
80004 Muonionalusta Meteorite Earrings Iron, IVA Norrbottens, Sweden - (67° 48'N, 23° 6'E) Found: 1906 0.37 x 0.... $1 04/28/2026 08:15:01 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $310 04/28/2026 03:19:33 PM CT
80013 Gemstone: Black Opal - 2.23 Cts. Lightning Ridge New South Wales, Australia 10.75 x 9.07 x 3.39 mm ... $55 04/28/2026 03:19:11 PM CT
80034 Polished Septarian Slab Utah, USA 5.66 x 5.15 x 0.45 inches (14.38 x 13.09 x 1.15 cm) ... $20 04/28/2026 02:47:47 PM CT
80034 Polished Septarian Slab Utah, USA 5.66 x 5.15 x 0.45 inches (14.38 x 13.09 x 1.15 cm) ... $10 04/28/2026 02:47:27 PM CT
80040 Polished Strawberry Opal Heart Peru 3.20 x 2.78 x 1.03 inches (8.12 x 7.05 x 2.61 cm) ... $50 04/28/2026 12:05:28 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $260 04/28/2026 12:02:31 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $220 04/28/2026 12:02:10 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $145 04/28/2026 12:01:13 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $135 04/28/2026 12:01:07 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $125 04/28/2026 12:00:58 PM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $115 04/28/2026 12:00:50 PM CT
80007 Ammolite Bracelet Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 8.07 x 0.50 x 0.19 i... $10 04/28/2026 10:33:57 AM CT
80002 Campo del Cielo Meteorite Pendant Iron, IAB-MG Chaco, Argentina Found: 1576 1.54 x 0.87 x 0.12 inches (3.9... $1 04/28/2026 10:33:41 AM CT
80038 Polished Chevron Amethyst Sphere Brazil 5.73 inches (14.55 cm) in diameter ... $115 04/28/2026 10:23:33 AM CT
80008 Suite of Ammolite Jewelry Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 0.63 x 0.63 ... $440 04/28/2026 10:22:16 AM CT
80008 Suite of Ammolite Jewelry Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 0.63 x 0.63 ... $410 04/28/2026 10:21:59 AM CT
80037 Polished Amethyst Geode Sphere Uruguay 4.89 inches (12.43 cm) in diameter ... $1 04/28/2026 10:16:18 AM CT
80044 Polished Azurite & Malachite Sphere Russia 2.12 inches (5.38 cm) in diameter ... $1 04/28/2026 10:15:40 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $115 04/28/2026 10:07:50 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $110 04/28/2026 10:07:47 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $100 04/28/2026 10:07:43 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $90 04/28/2026 10:07:40 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $80 04/28/2026 10:07:37 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $70 04/28/2026 10:07:34 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $60 04/28/2026 10:07:18 AM CT
80050 NWA 11428 Lunar Meteorite Slice Lunar (feldspathic breccia) Northwest Africa Found: 2017 2.05 x 1.28 x 0.0... $250 04/28/2026 10:01:40 AM CT
80026 Polished Malachite Box DR Congo 3.98 x 2.78 x 1.80 inches (10.10 x 7.05 x 4.56 cm) ... $5 04/28/2026 09:49:39 AM CT
80006 Ammolite Pendant Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 1.18 x 0.63 x 0.16 in... $10 04/28/2026 09:49:23 AM CT
80007 Ammolite Bracelet Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 8.07 x 0.50 x 0.19 i... $1 04/28/2026 09:49:15 AM CT
80001 Muonionalusta Meteorite Heart Necklace Iron, IVA Norrbottens, Sweden - (67° 48'N, 23° 6'E) Found: 1906 0.6... $1 04/28/2026 09:48:49 AM CT
80013 Gemstone: Black Opal - 2.23 Cts. Lightning Ridge New South Wales, Australia 10.75 x 9.07 x 3.39 mm ... $5 04/28/2026 09:07:32 AM CT
80046 Ammolite Fossil Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 2.71 x 2.43 x 0.42 inc... $1 04/28/2026 07:59:32 AM CT
80003 Sikhote-Alin Meteorite Pendant Iron, IIAB Maritime Territory, Siberia, Russia - (46°09'36"N, 134° 39'12"E) Witn... $1 04/27/2026 06:57:34 PM CT
80048 Sliced Ammonite Fossil Pair Cleoniceras sp. Cretaceous Madagascar 5.44 x 4.52 x 1.22 inches (13.81 x 11.49... $5 04/27/2026 06:55:44 PM CT
80006 Ammolite Pendant Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 1.18 x 0.63 x 0.16 in... $1 04/27/2026 01:14:23 PM CT
80038 Polished Chevron Amethyst Sphere Brazil 5.73 inches (14.55 cm) in diameter ... $50 04/27/2026 12:04:26 PM CT
80038 Polished Chevron Amethyst Sphere Brazil 5.73 inches (14.55 cm) in diameter ... $40 04/27/2026 12:04:16 PM CT
80038 Polished Chevron Amethyst Sphere Brazil 5.73 inches (14.55 cm) in diameter ... $25 04/27/2026 11:57:13 AM CT
80016 Gemstone: Opal Free-Form - 7.26 Cts. Ethiopia 24.18 x 14.92 x 6.52 mm ... $1 04/27/2026 11:54:10 AM CT
80042 Amethyst with Stand Uruguay 8.98 x 5.71 x 3.13 inches (22.80 x 14.50 x 7.95 cm) ... $105 04/27/2026 08:54:45 AM CT
80042 Amethyst with Stand Uruguay 8.98 x 5.71 x 3.13 inches (22.80 x 14.50 x 7.95 cm) ... $75 04/27/2026 08:54:05 AM CT
80013 Gemstone: Black Opal - 2.23 Cts. Lightning Ridge New South Wales, Australia 10.75 x 9.07 x 3.39 mm ... $1 04/27/2026 08:06:40 AM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $105 04/27/2026 05:11:23 AM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $65 04/27/2026 05:11:10 AM CT
80038 Polished Chevron Amethyst Sphere Brazil 5.73 inches (14.55 cm) in diameter ... $10 04/27/2026 04:14:47 AM CT
80018 Gemstone: Citrine - 9.17 Cts. Brazil 18.10 x 12.87 x 8.11 mm ... $1 04/27/2026 04:14:47 AM CT
80020 Gemstone: Blue Topaz - 9.53 Cts. Brazil 15.00 x 11.01 x 7.97 mm ... $1 04/27/2026 12:25:25 AM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $10 04/26/2026 10:52:53 PM CT
80048 Sliced Ammonite Fossil Pair Cleoniceras sp. Cretaceous Madagascar 5.44 x 4.52 x 1.22 inches (13.81 x 11.49... $1 04/26/2026 08:23:47 PM CT
80030 Onyx Bowl Mexico 10.43 x 8.31 x 3.39 inches (26.50 x 21.10 x 8.60 cm) ... $50 04/26/2026 08:22:54 PM CT
80030 Onyx Bowl Mexico 10.43 x 8.31 x 3.39 inches (26.50 x 21.10 x 8.60 cm) ... $45 04/26/2026 07:10:14 PM CT
80030 Onyx Bowl Mexico 10.43 x 8.31 x 3.39 inches (26.50 x 21.10 x 8.60 cm) ... $35 04/26/2026 07:05:45 PM CT
80030 Onyx Bowl Mexico 10.43 x 8.31 x 3.39 inches (26.50 x 21.10 x 8.60 cm) ... $20 04/26/2026 07:05:30 PM CT
80041 Polished Fluorite Heart China 5.51 x 4.52 x 0.98 inches (14.00 x 11.49 x 2.49 cm) ... $1 04/26/2026 04:33:39 PM CT
80040 Polished Strawberry Opal Heart Peru 3.20 x 2.78 x 1.03 inches (8.12 x 7.05 x 2.61 cm) ... $1 04/26/2026 04:33:19 PM CT
80039 Polished Agate Heart Brazil 4.43 x 3.89 x 0.90 inches (11.24 x 9.89 x 2.28 cm) ... $1 04/26/2026 04:32:57 PM CT
80034 Polished Septarian Slab Utah, USA 5.66 x 5.15 x 0.45 inches (14.38 x 13.09 x 1.15 cm) ... $1 04/26/2026 04:32:18 PM CT
80008 Suite of Ammolite Jewelry Placenticeras sp. Cretaceous Bearpaw Formation Alberta, Canada 0.63 x 0.63 ... $250 04/26/2026 03:55:22 PM CT
80030 Onyx Bowl Mexico 10.43 x 8.31 x 3.39 inches (26.50 x 21.10 x 8.60 cm) ... $1 04/26/2026 03:56:18 AM CT
80038 Polished Chevron Amethyst Sphere Brazil 5.73 inches (14.55 cm) in diameter ... $1 04/26/2026 03:55:17 AM CT
80042 Amethyst with Stand Uruguay 8.98 x 5.71 x 3.13 inches (22.80 x 14.50 x 7.95 cm) ... $55 04/25/2026 09:10:42 PM CT
80026 Polished Malachite Box DR Congo 3.98 x 2.78 x 1.80 inches (10.10 x 7.05 x 4.56 cm) ... $1 04/25/2026 07:13:09 PM CT
80023 Gemstone: Bumblebee Jasper - 96.41 Cts. Indonesia 60.56 x 36.62 x 5.18 mm ... $1 04/25/2026 06:25:54 PM CT
80014 Gemstone: Opal - 4.38 Cts. Wollo Mountains Amhara Region Northwestern Ethiopia 10.29 x 10.04 x 7.50 mm ... $1 04/25/2026 11:09:51 AM CT
80042 Amethyst with Stand Uruguay 8.98 x 5.71 x 3.13 inches (22.80 x 14.50 x 7.95 cm) ... $1 04/24/2026 09:06:58 AM CT
80012 Gemstone: Boulder Opal - 30.37 Cts. Australia 28.66 x 19.79 x 8.06 mm ... $1 04/24/2026 08:09:20 AM CT