Large Cluster of Dactylioceras Ammonite Fossil with Display StandHeritage Gallery Auctions4.4(105)$180(2 bids)6 hrs Left
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Large Black Tourmaline Specimen with Matrix ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.4(529)$106 days Left
LARGE CATHEDRAL BOLIVIAN DRUZY AMETHYST CRYSTAL GEODE WITH BLUE AGATEDan Morphy Auctions4.3(1.4k)$50(2 bids)Jun 11, 2026
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LARGE CATHEDRAL BOLIVIAN AMETHYST CRYSTAL GEODE WITH BLUE AGATEDan Morphy Auctions4.3(1.4k)$100Jun 11, 2026
Large Amethyst cathedral geode specimen features a deep interior cavity lined with crystalline quartUniques and Antiques, Inc.4.7(877)$75Jun 09, 2026
