Sold2016Natural History - Polished Agate and Amethyst MineralA fine 16 mm thick natural agate slab with a crystalline initial layer with a white agate central layer and a hollow filled with lilac amethyst, with two old, unreadable paper labels. From the historiSee Sold Price
Sold2024Natural 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'sSee Sold Price
Sold2016Natural History - Polished Lace Agate Mineral Specimen.A polished three-sided 'pyramid' of lace agate with numerous twists and swirls picked out in various shades of white and green, the base unpolished to expose the patterns in the raw stone. See BonewitSee Sold Price
Sold2016Natural History - Polished Agate Geode PairA sawn and polished pair of natural agate geodes with several 'eyes' and cavities filled with amethyst crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, Bottley &See Sold Price
Sold2023Natural History - Polished Agate Crystal Geode Coaster Set [6]. Each polished to expose the layers of the inner core; felt-backed. 774 grams total, 11-13.5 cm (4 1/4 - 5 1/4 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [6, No ReserSee Sold Price
Sold2023Natural History - Cut and Polished Agate Crystal Geode Slice GroupA group of six cut and polished agate geode slices; colour-enhanced. 322 grams total, 8.8-10.7 cm (3 1/2 - 4 1/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]See Sold Price
Sold2023Natural History - Cut and Polished Agate Crystal Geode Section GroupA group of eight agate geode sections. 3.5 kg total, 85-96 mm (3 3/8 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [8, No Reserve]See Sold Price
Sold2023Natural History - Cut and Polished Agate Crystal Geode Slice GroupA group of six polished agate geode slices; colour-enhanced. 396 grams total, 8.7-11.8 cm (3 3/8 - 4 5/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]See Sold Price
Sold2023Natural History - Large Pink Cut and Polished Agate Crystal SliceA large pink agate crystal slice, polished on both faces; colour-enhanced. 484 grams, 23.5 cm (9 1/4 in.). From Antigas, Uraguay.Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No RSee Sold Price
Sold2019Natural History - Polished Egg GroupA mixed group of polished mineral 'eggs' including onyx, amethyst(?), serpentine(?"). 484 grams total, 48-64mm (2 - 2 1/2"). Ex Thompson collection, Devon, UK. [4, No Reserve]See Sold Price
Sold2024Natural History - Grade A Cut and Polished Agate Slice Collection [3].Comprising three transparent slices showing attractive banding. 286 grams total, 9-14 cm (3 1/2 - 5 1/2 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [3, No Reserve]See Sold Price
Sold2023Natural History - Large Size Cut and Polished Pink Agate Crystal Geode Slice. With enhanced pink-colour and also showing translucent to opaque quartz crystals. 539 grams, 23.2 cm (9 1/8 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]See Sold Price
Sold2019Natural History - Polished Large Egg GroupA group of five polished mineral 'eggs' in onyx, banded agate, serpentine(?"). 1.3 kg total, 69-80mm (2 3/4 - 3 1/4"). Ex Thompson collection, Devon, UK. [5, No Reserve]See Sold Price
Sold2023Natural History - Polished Aventurine Quartz Crystal Tree on Amethyst Crystal Base. The flexible metal branches tipped with polished aventurine pebbles; the matrix with clusters of purple amethyst crystals. 563 grams, 18 cm (7 in.). Ex Mineral Imports, London, UK. Gregory, BottleySee Sold Price
Sold2017Natural History - Polished Mixed Minerals in DomesA group of ten acrylic display domes, each filled with a quantity of polished specimens of a single mineral, comprising of sodalite, green agate, snowflake obsidian, leopardskin stone, tiger-eye, brecSee Sold Price
Sold2023Natural History - Purple Agate Crystal Geode Section GroupA group of six cut and polished purple agate geode sections, with exposed crystals; colour-enhanced. 1.39 kg total, 69-94 mm (2 3/4 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (See Sold Price
Sold2024Natural History - Mixed Mineral Specimen Collection [20].Comprising: popcorn quartz, amethyst, agate, smoky quartz, brown obsidian, citrine, pyrite, 'desert rose', and others. 823 grams total, 23-81 mm (7/8 - 3 1/8 in.). Ex Mineral Imports, London, UK.GregoSee Sold Price
Sold2023Natural History Geode Mineral Agate Slice SpecimenLarge agate geode cross section slice with a smooth high mirror polished finish. OOAK ( one of a kind ) color variations and design patterns seen in this example. Accompanied with a clear plastic stanSee Sold Price
Sold2017Natural History - Moldavite Mineral SpecimenAn exceptionally fine mushroom-shaped moldavite specimen with classic ablation melting, accompanied by polished pebbles of amethyst and jasper. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008,See Sold Price
Sold2021Rock, Crystal, Natural, Collectible, Mineral, SpecimenAmethyst with Polished Agate Edge Brazil 2lbSee Sold Price
Sold2023Natural History - Citrine and Amethyst Gem TreeA medium size gemstone tree consisting of a brass trunk and branches tipped with polished citrine, mounted on a section of amethyst geode. 518 grams, 18 cm high (7 in.). Mineral Imports, London, UK.GrSee Sold Price
Sold2024Natural History - Quartz Gem Tree on Amethyst Crystal Geode Section.Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished clear quartz pebbles. 449 grams total, 19 cm (7 1/2 in.). From Brazil.Ex Mineral Imports, London, UKSee Sold Price
Sold2024Natural History - Citrine Gem Tree on Amethyst Crystal Geode Section.The irregular geode matrix with lavender coloured amethyst crystals; the metal branches tipped with polished light-coloured citrine pebbles. 727 grams, 18.3 cm (7 1/8 in.). From Brazil.Ex Mineral ImpoSee Sold Price
Sold2024Group Lot Seashell and Gemstone Collectibles+Group of natural seashells and a group of polished gemstone specimens. 1,317 cts of minerals , including amethyst crystal, tigers eye, green Quartz, malachite, agate, Jasper, more. Orange Jasper measuSee Sold Price
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4 days LeftThousand Planet Auction HouseAn Ancient Egyptian Carnelian Amulet of Pataikos, Late Period, c. 700-30 BCE$5
4 days LeftThousand Planet Auction HouseAn Antique Mughal Empire Amethyst Pendant Bead, c. 16th-19th Century$5(1 bid)
4 days LeftThousand Planet Auction HouseAn Antique Mughal Empire Carved Amethyst Bead, c. 16th-18th Century$5(1 bid)
4 days LeftThousand Planet Auction HouseAncient Greco-Bactrian Banded Agate Bead, c. 3rd to 2nd Century BCE$5
4 days LeftThousand Planet Auction HouseAn Antique Mughal Empire Amethyst Pendant Bead, c. 16th-19th Century$5
4 days LeftThousand Planet Auction HouseAncient Greco-Bactrian Banded Agate Bead, c. 3rd to 2nd Century BCE$5
4 days LeftThousand Planet Auction HouseAn Antique Himalayan Tibetan Agate Bead, Circa 17th-19th Century$5
4 days LeftThousand Planet Auction HouseAn Antique Himalayan Tibetan Agate Bead, Circa 17th-19th Century$5
4 days LeftThousand Planet Auction HouseAn Ancient Persian Bow-Shaped Carnelian Agate Bead, Possibly 2nd Millennium BCE$5