Massive, Deep Purple Amethyst Crystal Cluster Geode SpecimenKavanagh Auctions4.7(397)CA$50Aug 29, 2026
A Collection of Natural Geodes, Minerals, and Fossilized Ammonite SpecimensCapsule Auctions4.7(189)$1005 days Left
LARGE NATURAL URUGUAYAN PURPLE AMETHYST CRYSTAL CLUSTER SPECIMENCornell Auctions, Objects & Trade4.6(373)$40(1 bid)2 days Left
CHAROITE ROCK STONE LAPIDARY SPECIMEN NATURAL PURPLE GEMSTONE COLLECTORCol. Christie Hatman Auctioneers4.3(540)$182 days Left
