SaveMay 20, 2026Polished Brazilian Agate GeodeThe Benefit Shop Foundation Inc.4.4(3.4k)Est. $20-$70$2(1 bid)
Save6 days LeftLARGE COLLECTION OF ASSORTED ROUGH CRYSTALS IN BOXAntique Arena Inc.4.5(1.1k)Est. $50-$100$10
SaveJun 06, 2026Twenty [20] Assorted Mixed Mineral SpecimensTimeLine Auctions Ltd.4.6(200)Est. £20-£30£5
SaveMay 28, 2026Natural Agate Crystal Cave with Quartz Crystal InteriorWeatherham Estate Treasures3.9(237)Est. $110-$220$54
SaveJun 06, 2026Cut and Polished Amethyst Crystal Obelisk CollectionTimeLine Auctions Ltd.4.6(200)Est. £30-£40£5
![Twenty [20] Assorted Mixed Mineral Specimens: A boxed group of specimens comprising: two geode sections with amethyst, two pyrite specimens, one from Huanuco, Peru; a polished agate half showing 'fortress' type banding; a large smoky quartz cryst](https://p1.liveauctioneers.com/1191/415806/231335389_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
![Cut and Polished Amethyst Crystal Obelisk Collection: A group of three cut and polished amethyst obelisks; held in a white card collector's tray. 200 grams total, 65-98 mm (2 1/2 - 4 in.). [3, No Reserve] From Brazil. Mineral Imports, London, UK. Gregory](https://p1.liveauctioneers.com/1191/415806/231335449_1_x.jpg?height=280&quality=70&sharpen=true&version=1777480633&width=280)