Est.
£10
-£20
Britannica Auctions LtdLeyburn, North Yorkshire
![Group of Twenty Nine [29] Rock Crystal Point Display Specimens: Boxed group of colourless pyramidal quartz crystal points. 2.11 kg total including box, 42-86 mm (1 5/8 - 3 3/8 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd](https://p1.liveauctioneers.com/1191/415806/231335375_1_x.jpg?height=280&quality=70&sharpen=true&version=1777479005&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
![Set of Six [6] Cut, Polished and Felt-Backed Agate Coasters: Comprising six polished slices in gently graduated sizes, cut from the same geode. 372 grams total, 8.8-10.2 cm (3 1/2 - 4 in.). [6, No Reserve] Ex Mineral Imports, London, UK. Gregory, Bottley & Lloy](https://p1.liveauctioneers.com/1191/415806/231335352_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
![Large Group of Rock Crystal Specimens: A boxed group of prismatic crystals with pyramidal terminations, some twinned. 1.92 kg total including box, 21-69 mm (7/8 - 2 3/4 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregor](https://p1.liveauctioneers.com/1191/415806/231335324_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£50
-£70
TimeLine Auctions Ltd.Harwich, Essex
![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
![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
![Group of Seventy [70] Amethyst Crystal Geode Sections: Boxed group of dark to light purple amethyst crystals on geode sections. 3.96 kg total including box, 10-74 mm (3/8 - 2 7/8 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bot](https://p1.liveauctioneers.com/1191/415806/231335415_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
![Group of Ten [10] Cut and Polished Agate Geode Slices: Comprising ten translucent slices of agate showing attractive banding, one a moss agate slice. 666 grams total, 8.1-13.2 cm (3 1/4 - 5 1/4 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, U](https://p1.liveauctioneers.com/1191/415806/231335445_1_x.jpg?height=280&quality=70&sharpen=true&version=1777479005&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
![One Hundred and Thirty [130] Amethyst Crystal Geode Sections: Boxed group of amethyst geode sections in various sizes, showing well-formed light purple crystals. 2.65 kg total including box, 18-52 mm (3/4 - 2 in.). [130, No Reserve] Ex Mineral Imports, London, U](https://p1.liveauctioneers.com/1191/415806/231335460_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
![Collection of Ten [10] Cut and Polished Agate Geode Halves: Each with one or two cut faces exposing the internal structure, some showing crystal formations. 3.22 kg total, 76-85 mm (3 - 3 3/8 in.). [10, No Reserve] Ex Mineral Imports, London, UK. Gregory, Bott](https://p1.liveauctioneers.com/1191/415806/231335390_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£40
-£60
TimeLine Auctions Ltd.Harwich, Essex
![Purple Amethyst Crystal Geode Specimen Group [20]: Comprising irregular geode sections lined with lavender to dark purple amethyst crystals. 1.36 kg total, 40-84 mm (1 1/2 - 3 1/4 in.). [20, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gre](https://p1.liveauctioneers.com/1191/415806/231335470_1_x.jpg?height=280&quality=70&sharpen=true&version=1777480633&width=280)
Est.
£10
-£20
TimeLine Auctions Ltd.Harwich, Essex
![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
![Citrine Gem Tree on Amethyst Crystal Geode Section: Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished light-coloured citrine pebbles. 479 grams, 20 cm (7 7/8 in.). [No Reserve] From Brazil. Ex Mineral I](https://p1.liveauctioneers.com/1191/415806/231335407_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
![Set of Three [3] Cut and Polished 'Eye' Agate Geode Slices: Comprising three transparent slices from the same geode showing an eye-like pattern. 155 grams total, 13.5-14 cm (5 1/4 - 5 1/2 in.). [3, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Grego](https://p1.liveauctioneers.com/1191/415806/231335494_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
![Collection of Ten [10] Cut and Polished Assorted Agate Geode Halves: Comprising ten geode halves with internal cavities, most with crystal lining. 1.43 kg total, 52-94 mm (2 - 3 3/4 in.). [10, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley &](https://p1.liveauctioneers.com/1191/415806/231335454_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
Est.
$80
-$100
Orange County Estate LiquidatorsOtisville, NY
Orange County Estate LiquidatorsOtisville, NY
![Group of Twenty Nine [29] Large Polished Amethyst Crystal Points: Boxed group of large pyramidal pale purple amethyst crystals. 4.15 kg total including box, 54-73 mm (2 1/8 - 2 7/8 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Ll](https://p1.liveauctioneers.com/1191/415806/231335339_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£40
-£60
TimeLine Auctions Ltd.Harwich, Essex
![Quartz Gem Tree on Amethyst Crystal Geode Section: Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished quartz pebbles. 520 grams, 19.5 cm (7 5/8 in.). [No Reserve] From Brazil. Ex Mineral Imports, London](https://p1.liveauctioneers.com/1191/415806/231335356_1_x.jpg?height=280&quality=70&sharpen=true&version=1777475205&width=280)
Est.
£20
-£30
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
![Citrine Gem Tree on Amethyst Crystal Geode Section: Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished light-coloured citrine pebbles. 475 grams, 19 cm (7 1/2 in.). [No Reserve] From Brazil. Ex Mineral I](https://p1.liveauctioneers.com/1191/415806/231335416_1_x.jpg?height=280&quality=70&sharpen=true&version=1777479005&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
![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
![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
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