Est. £1,200-£1,700
TimeLine Auctions Ltd.Harwich, Essex
Est. US$50-US$150
Akiba GalleriesDania Beach, FL
Est. £200-£400
Dreweatts Donnington PrioryNewbury, Berkshire
Est. US$15-US$10,000
Heartland Artifact AuctionsQuincy, IL
Est. US$15-US$10,000
Heartland Artifact AuctionsQuincy, IL
Est. US$50-US$100
Antique Arena Inc.Brooklyn, NY
![Amethyst Gem Tree on Amethyst Crystal Geode Section: Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished light-coloured amethyst pebbles. 422 grams, 16.5 cm (6 1/2 in.). [No Reserve] From Brazil. Ex Minera](https://p1.liveauctioneers.com/1191/415806/231335287_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £20-£30
TimeLine Auctions Ltd.Harwich, Essex
Est. US$125-US$250
Lewis & Maese Antiques & AuctionHouston, TX
Est. US$10-US$10,000
Berner's Antique Auction GallerySpringfield, OH
![Ten [10] Mixed Cut and Polished Agate Geode Half Group: Each showing a crystal-lined cavity and some with attractive banding, one with globular pink formations within the cavity. 1.18 kg total, 50-85 mm (2 - 3 3/8 in.). [10, No Reserve] From Brazil. Ex Min](https://p1.liveauctioneers.com/1191/415806/231335417_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
![Collection of Six [6] Cut and Polished Agate Geode Sections: Comprising six polished sections, four showing vibrant red to brown to white banding, and having felt-backed bases; one with a cut base and green banding. 2.75 kg total, 12.3-16 cm (4 7/8 - 6 1/4 in.)](https://p1.liveauctioneers.com/1191/415806/231335399_1_x.jpg?height=280&quality=70&sharpen=true&version=1777479005&width=280)
Est. £40-£60
TimeLine Auctions Ltd.Harwich, Essex
Est. US$10-US$10,000
Berner's Antique Auction GallerySpringfield, OH
![Cut and Polished Agate Geode Slice Group: Comprising six translucent slices showing red, orange and grey banding together with colourless quartz crystal formations. 392 grams total, 13.2-13.8 cm (5 1/4 - 5 3/8 in.). [6, No Reserve] Ex Mineral](https://p1.liveauctioneers.com/1191/415806/231335509_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
Est. US$10-US$10,000
Berner's Antique Auction GallerySpringfield, OH
Antik Vegesack GmbH & Co.Bremen, DE
![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)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
![Group of Three [3] Cut and Polished Malawi Agate Geode Halves: Comprising three sections with a polished cut face, each with a crystal-lined centre and showing contrasting banding. 1.57 kg total, 8.8-16 cm (3 1/2 - 6 1/4 in.). [3, No Reserve] From Malawi. Ex Mine](https://p1.liveauctioneers.com/1191/415806/231335291_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
![Collection of Three [3] Cut and Polished Malawi Agate Geode Halves: Comprising three specimens with polished cut faces, showing strong banding and crystal-lined interior. 2.12 kg total including box, 9.2-16 cm (3 5/8 - 6 1/4 in.). [3, No Reserve] From Malawi. Ex Miner](https://p1.liveauctioneers.com/1191/415806/231335351_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
Est. US$10-US$10,000
Berner's Antique Auction GallerySpringfield, OH
![Cut and Polished Agate Crystal Geode Pair: Comprising two halves from the same geode, showing contrasting, nearly straight banding at the bottom with a quartz crystal-filled cavity above. 1.08 kg total, 10.9-11 cm (4 1/4 in.). [2, No Reserve]](https://p1.liveauctioneers.com/1191/415806/231335358_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est. £30-£40
TimeLine Auctions Ltd.Harwich, Essex
Est. US$100-US$200
Bryant Art AuctionPlacentia, CA
Est. US$20-US$40
ThousandPlanetHunghom, Kowloon, HK
Est. US$20-US$40
ThousandPlanetHunghom, Kowloon, HK
Est. US$20-US$40
ThousandPlanetHunghom, Kowloon, HK
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