![Group of Six [6] Large Cut and Polished Agate Geode Halves: Comprising six cut and polished geode halves showing characteristic banding, some with crystal-lined interiors. 2.74 kg total, 9-12.5 cm (3 1/2 - 4 7/8 in.). [6, No Reserve] From Brazil. Ex Mineral Im](https://p1.liveauctioneers.com/1191/426518/237925248_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
![Large Cut and Polished Yellow Agate Crystal Geode Slice Artefact Base: Oval section of light brown agate geode showing some quartz crystal formations. 824 grams, 18.7 cm (7 3/8 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Greg](https://p1.liveauctioneers.com/1191/426518/237925344_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
![Large Cut and Polished Banded Blue Agate Geode Slice Artefact Base: Thick, oval slice of a geode showing contrasting grey banding with some quartz crystals at the centre. 1.07 kg, 20 cm (7 7/8 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bo](https://p1.liveauctioneers.com/1191/426518/237925275_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
![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. 505 grams, 16 cm (6 1/4 in.). [No Reserve] From Brazil. Ex Mineral I](https://p1.liveauctioneers.com/1191/426518/237925155_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
![Aventurine Gem Tree on Amethyst Crystal Geode Section: Irregular geode matrix with purple amethyst crystals; the metal branches tipped with polished dark and light green aventurine quartz pebbles. 723 grams, 18 cm (7 in.). [No Reserve] From Brazil. Ex Min](https://p1.liveauctioneers.com/1191/426518/237925372_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
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. 662 grams, 18 cm (7 in.). [No Reserve] From Brazil. Ex Mineral Imports, London, UK.](https://p1.liveauctioneers.com/1191/426518/237925176_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
Est.
$25
-$50
Davis Brothers AuctionMissoula, MT
![Group of Three [3] Large Cut and Polished Agate Geode Specimens: Comprising three freestanding sections with polished faces showing mainly grey and brown banding, and each with a central crystal-lined cavity. 2.06 kg total, 9.7-12.2 cm (3 7/8 - 4 3/4 in.). [3, No R](https://p1.liveauctioneers.com/1191/426518/237925150_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
Est.
$30
-$10,000
Col. Christie Hatman AuctioneersThayer, MO
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
![Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves: Comprising five translucent, polished slices and ten cut and polished geode sections. 1.68 kg total, 5.3-14.2 cm (2 - 5 5/8 in.). [15, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory,](https://p1.liveauctioneers.com/1191/426518/237925125_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
Li TingTingOrlando, FL
![Group of Three [3] Large Cut and Polished Agate Geode Specimens: Each showing characteristic banding and crystal-lined cavities. 2.2 kg total, 9.3-11 cm (3 5/8 - 4 3/8 in.). [3, No Reserve] From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Greg](https://p1.liveauctioneers.com/1191/426518/237925363_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£20
-£30
TimeLine Auctions Ltd.Harwich, Essex
Est.
$50
-$75
Davis Brothers AuctionMissoula, MT
![Large Cut and Polished Banded Agate Crystal Geode Slice: Thick slice of 'fortress' agate with grey, brown, black and orange banding, the internal cavity lined with small pale purple amethyst crystals. 575 grams, 24.6 cm (9 3/4 in.). [No Reserve] From Brazil](https://p1.liveauctioneers.com/1191/426518/237925159_1_x.jpg?height=280&quality=70&sharpen=true&version=1785755501&width=280)
Est.
£30
-£40
TimeLine Auctions Ltd.Harwich, Essex
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