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Sep 25, 2026NATURAL CORAL SPECIMEN ON CLEAR ACRYLIC BASEEst. $150-$350$100Austin, TXAustin Auction Gallery4.7(1.3k)
18 hrs LeftGroup Of Dendritic Merlinite Opal NodulesEst. $50-$75$10Missoula, MTDavis Brothers Auction4.2(911)
4 days LeftPOLISH BANDED AGATE GEODE BOWLEst. $10-$100$10Sudlersville, MDRussum's Auctioneers4.4(188)
Sep 29, 2026Uruguayan Amethyst Geode Crystal Cluster on Metal StandEst. $1,000-$2,000$300Hollywood, FLWilliamson Auction Gallery4.6(341)
23 hrs LeftExquisite Hand-Carved Parrot on Amethyst Geode MiEst. $250-$600$120MIAMI, FLBasel Auction House4.5(57)
Sep 24, 2026Amethyst Gem Tree Sculpture on Crystal Cluster BaseEst. $300-$500$24Coral Gables, FLCoral Gables Auction4.5(693)
18 hrs LeftGroup Of Dendritic Merlinite Opal NodulesEst. $50-$75$10Missoula, MTDavis Brothers Auction4.2(911)
18 hrs LeftGroup Of Dendritic Merlinite Opal NodulesEst. $50-$75$10Missoula, MTDavis Brothers Auction4.2(911)
Sep 18, 202625.29 Ct Natural Crazy Lace Agate Pear CabEst. $100-$200$1Bangkok, THGems Auction4.7(489)
Sep 20, 20264 5/8" Agate Basin, Found in ILEst. $15-$10,000$10Quincy, ILHeartland Artifact Auctions4.7(912)
7 days LeftManuel Vidal b1953 Bronze & Geode Lovers SculptureEst. $100-$1,000$250(4 bids)Sunrise, FLHill Auction Gallery 4.7(1.1k)
Sep 20, 2026Story in Stone: Flint Types of the Central and Southern U.S. by Van WaldorfEst. $15-$10,000$10(1 bid)Quincy, ILHeartland Artifact Auctions4.7(912)
Oct 1, 2026Collection of Semi-Precious Stones & Fossils, 12Est. $300-$500$100(1 bid)Astoria, NYAuctions at Showplace4.6(849)
18 hrs LeftGroup Of Dendritic Merlinite Opal NodulesEst. $50-$75$10Missoula, MTDavis Brothers Auction4.2(911)
18 hrs LeftCarnival Glass Imperial Broken Arches 6-PcEst. $200-$10,000$100Union, ILDonley Auctions4.7(563)
6 days LeftLot of 3 Natural Agate, Geode & Banded Stone SpecimensEst. $300-$500$50Hollywood, FLWilliamson Auction Gallery4.6(341)
18 hrs LeftCollection of Carved Flower Agate MoonsEst. $25-$50$10Missoula, MTDavis Brothers Auction4.2(911)