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Crystal Rocks, Minerals & Fossils
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![Natural History - Amethyst Crystal Geode Section.: A cut section of amethyst crystals of good colour. 555 grams, 92 mm (3 5/8 in.). Ex Lincolnshire, UK, collection. [No Reserve]](https://p1.liveauctioneers.com/1191/317892/170615882_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Amethyst Crystal Geode Cut Half Collection [6].: Comprising six examples with this outer walls and the internal cavity filled with small lavender-coloured crystals. 338 grams total, 50-75 mm (2 - 3 in.). From Brazil.Ex Mineral Imports, London, UK.Gr](https://p1.liveauctioneers.com/1191/317894/170617156_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Large Citrine Crystal Geode Display Section.: Of irregular shape with dark orange crystals. 1 kg, 13.7 cm (5 3/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No Reserve]](https://p1.liveauctioneers.com/1191/317892/170615846_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Mini Agate Crystal Geode Cut Half Group [100].: Most with an exposed internal cavity filled with small quartz crystals. 635 grams total, 20-43 mm (3/4 - 1 5/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [1](https://p1.liveauctioneers.com/1191/317892/170615806_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Amethyst Crystal and Agate Geode Cut Half Collection [6].: Comprising six halves, each showing an internal cavity and attractive banding. 749 grams total, 51-78 mm (2 - 3 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [](https://p1.liveauctioneers.com/1191/317892/170615740_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Agate Crystal Geode Cut Half Group [10].: Comprising ten variously sized geode halves, each with an internal cavity with quartz and other crystal formations. 765 grams total, 29-75 mm (1 1/8 - 3 in.). From Brazil.Ex Mineral Imports, London, U](https://p1.liveauctioneers.com/1191/317892/170615738_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Cut and Polished Agate Crystal Geode End Group [4].: Comprising four cut and polished ends, one with light coloured banding; one with milky white layer above dark brown banding; one with dark rounded formations forming a 'Mickey Mouse' head; one with li](https://p1.liveauctioneers.com/1191/317894/170617049_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Cut and Polished Agate Crystal Geode End Group [4].: Comprising four specimens, each polished to reveal internal structure. 866 grams total, 9.5 - 11.5 cm (3 3/4 - 4 1/2 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory'](https://p1.liveauctioneers.com/1191/317894/170617182_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Agate Crystal Geode Cut Section Collection [3].: Comprising three examples in enhanced blue colour, two showing an internal cavity filled with small quartz crystals. 962 grams total, 7.1-11 cm (2 3/4 - 4 3/8 in.). Ex Mineral Imports, London, UK.Greg](https://p1.liveauctioneers.com/1191/317894/170617057_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Cut and Polished Agate Crystal Geode Slice Group [6].: Comprising six polished slices showing attractive banding, some with the internal cavity filled with quartz crystals. 625 grams total, 11.7-13 cm (4 5/8 - 5 1/8 in.). From Brazil.Ex Mineral Imports, L](https://p1.liveauctioneers.com/1191/317892/170615825_1_x.jpg?height=310&quality=70&version=1706617191)
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