![Group of Ten [10] Cut and Polished Agate Geode Halves: Comprising ten cut and polished halves, each showing a crystal-lined cavity. 1.23 kg total, 60-77 mm (2 3/8 - 3 in.). [10, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & L](https://p1.liveauctioneers.com/1191/415806/231335345_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
![Ten [10] Mixed Cut and Polished Agate Geode Slices From Brazil: Comprising ten translucent to opaque slices, some showing quartz crystals, two dyed. 540 grams total, 5.2-13.4 cm (2 - 5 1/4 in.). [10, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory](https://p1.liveauctioneers.com/1191/415806/231335503_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £20-£30
TimeLine Auctions Ltd.Harwich, Essex
![Group of One Hundred [100] Amethyst Crystal Geode Sections: Boxed group of amethyst crystals on matrices exhibiting vibrant purple colour. 3.45 kg total including box, 22-56 mm (7/8 - 2 1/4 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregor](https://p1.liveauctioneers.com/1191/415806/231335353_1_x.jpg?height=280&quality=70&sharpen=true&version=1777479005&width=280)
Est. £40-£60
TimeLine Auctions Ltd.Harwich, Essex
![Group of Twenty [20] Mixed Mineral Specimens: A boxed group of minerals comprising: amethyst specimens; red jasper; blue lace agate; a cut and polished agate geode half; sulphur; hematite; rock crystal; light blue topaz pebble; calcite, and other](https://p1.liveauctioneers.com/1191/415806/231335511_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £20-£30
TimeLine Auctions Ltd.Harwich, Essex
![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)
Est. £20-£30
TimeLine Auctions Ltd.Harwich, Essex
![A Collection of Twelve [12] Large Amethyst Mineral Specimens: A boxed group of geode sections with amethyst crystals, the colours ranging from very pale purple to dark purple. 3.51 kg total including box, 5.6-12 cm (2 1/4 - 4 3/4 in.). [12, No Reserve] From Braz](https://p1.liveauctioneers.com/1191/415806/231335326_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £60-£80
TimeLine Auctions Ltd.Harwich, Essex
Est. US$400-US$800
Austin Auction GalleryAustin, TX
Est. US$600-US$800
Tony Putty ArtifactsGwynneville, IN
Est. US$80-US$150
Austin Auction GalleryAustin, TX
Est. US$2,000-US$3,000
Toomey & Co. AuctioneersLos Angeles, CA
Est. US$300-US$500
Auctions at ShowplaceAstoria, NY
Est. US$15-US$10,000
Heartland Artifact AuctionsQuincy, IL
Est. US$1,200-US$1,800
Toomey & Co. AuctioneersLos Angeles, CA
Est. £4,000-£6,000
TimeLine Auctions Ltd.Harwich, Essex
Est. US$30-US$60
Cordier AuctionsHarrisburg, PA
Est. US$75-US$150
Dennis Auction Service, Inc.Stewartsville, NJ
Est. £1,800-£2,400
TimeLine Auctions Ltd.Harwich, Essex
Est. £1,500-£2,000
TimeLine Auctions Ltd.Harwich, Essex
Est. US$75-US$125
Davis Brothers AuctionMissoula, MT
Est. £1,200-£1,700
TimeLine Auctions Ltd.Harwich, Essex
Est. £1,000-£1,400
TimeLine Auctions Ltd.Harwich, Essex
Est. £800-£1,000
TimeLine Auctions Ltd.Harwich, Essex
Est. £1,500-£2,000
TimeLine Auctions Ltd.Harwich, Essex
Est. US$35-US$60
CATAMOUNT AUCTION CO LLCShelburne Falls, MA
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