![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)
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![Natural History - Purple Triangular Fluorite Mineral Specimen Group [20].: Comprising twenty purple and blue specimens with bevelled edges. 339 grams total, 27-43 mm (1 - 1 3/4 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [20, No Reserve]](https://p1.liveauctioneers.com/1191/317892/170615855_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Boxed Realgar Orpiment Mineral Specimen Group [12].: Each set on foam base and in a labelled box. 189 grams total, 16-40 mm (5/8 - 1 1/2 in.). From Getchel, Nevada, U.S.A.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [12, No Reser](https://p1.liveauctioneers.com/1191/317894/170617101_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Boxed Mineral Specimen Group [6].: Comprising: galena from Tri-State, USA; calcite from Mexico; fluorite from Illinois, USA; fluorite with hematite from Tri-State, USA; pyrite from Huanaco, Peru. 349 grams total, 32-58 mm (1 1/4 - 2 1/](https://p1.liveauctioneers.com/1191/317894/170617075_1_x.jpg?height=310&quality=70&version=1706620797)
![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 - Chalcopyrite 'Peacock Ore' Mineral Specimen Group [120].: Comprising a large quantity of specimens showing a beautiful play of colour. 1 kg total, 14-29 mm (1/2 - 1 1/8 in.). From Mexico.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [1](https://p1.liveauctioneers.com/1191/317892/170615916_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Mixed Polished Mineral Specimen Pebble Group [100].: Comprising: haematite, quartz, amethyst, aventurine, agate, dalmatian jasper and others. 793 grams total, 18-33 mm (3/4 - 1 1/4 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's](https://p1.liveauctioneers.com/1191/317892/170615905_1_x.jpg?height=310&quality=70&version=1706617191)
![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 - Medium 'Rusty' Rose Quartz Mineral Specimen Group [20].: Comprising good-seized chunks of rose quartz with ferrous mineral. 2.56 kg total, 53-93 mm (2 1/8 - 3 5/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [20, No](https://p1.liveauctioneers.com/1191/317892/170615970_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Boxed Pyrite Mineral Specimen Group [6].: Each in a labelled specimen tray. 335 grams total, 34-36 mm (1 3/8 in.). From Peru.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]](https://p1.liveauctioneers.com/1191/317892/170615947_1_x.jpg?height=310&quality=70&version=1706617191)
![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)
![Natural History - Purple Agate Cut and Polished Geode Half Group [6].: Comprising six examples in enhanced purple colour. 1.09 kg total, 58-69 mm (2 1/4 - 2 3/4 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]](https://p1.liveauctioneers.com/1191/317892/170615752_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Medium Amethyst Crystal Geode Section Group [20].: Comprising variously sized geode sections with clusters of purple amethyst crystals. 2 kg total, 54-78 mm (2 1/8 - 3 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory'](https://p1.liveauctioneers.com/1191/317892/170615720_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Boxed Topaz Mineral Specimen Group [10].: Each specimen displaying prismatic crystals on matrix. 94 grams total, 19-28 mm (3/4 - 1 1/8 in.). From Mexico.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [10, No Reserve]](https://p1.liveauctioneers.com/1191/317894/170617096_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Chrysocolla Mineral Sample Group [8].: Comprising eight irregular dark green pieces. 192 grams total, 33-49 mm (1 1/4 - 2 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [8, No Reserve]](https://p1.liveauctioneers.com/1191/317894/170617047_1_x.jpg?height=310&quality=70&version=1706620797)
![Natural History - Amethyst Crystal Geode Section Group [100].: Comprising cut geode sections with clusters of light to dark coloured amethyst crystals. 1.4 kg total, 20-37 mm (5/8 - 1 3/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (](https://p1.liveauctioneers.com/1191/317892/170615874_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Boxed Cut and Polished Chiastolite Mineral Specimen Group [7].: Comprising seven specimens with black inclusions of graphite; in labelled specimen trays. 140 grams total, 21-31 mm (3/4 - 1 1/4 in.). From China.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloy](https://p1.liveauctioneers.com/1191/317892/170615850_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Natural Agate Cut and Polished Geode Half Group [6].: Comprising six cut halves, polished to show grey and white banding. 1.32 kg total, 70-80 mm (2 3/4 - 3 1/8 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]](https://p1.liveauctioneers.com/1191/317892/170615797_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Boxed Selenite Mineral Specimen Group [10].: Comprising ten cut wand sections showing typical bifringence; each in a cardboard specimen box. 174 grams total, 23-33 mm (7/8 - 1 1/4 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gr](https://p1.liveauctioneers.com/1191/317892/170615796_1_x.jpg?height=310&quality=70&version=1706617191)
![Natural History - Yellow Calcite Mineral Specimen Group [100].: Comprising a large quantity of bright yellow specimens. 1.13 kg total, 14-68 mm (5/8 - 2 5/8 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [100, No Reserve]](https://p1.liveauctioneers.com/1191/317894/170617134_1_x.jpg?height=310&quality=70&version=1706620797)
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