Sold2016Natural History - 'Coconut' Geode Polished Half.A sawn and polished half of a Mexican 'coconut' geode comprised of several brown and yellow-brown calcite layers, lined with small quartz crystals and with several brown calcite scalenohedral overgrowSee Sold Price
Sold2016Natural History - Natural Geode Group.A group of twenty-seven natural geode halves with quartz crystals from Brazil, each cut with a polished face. 1037 gram total, 37-70mm (1 1/2 - 2 3/4"). From an old Lincoln Collection [27, No Reserve]See Sold Price
Sold2018Large Natural History Group Cut Polished Geode SlabsLarge group of cut and polished rocks and geode slabs. Sizes range from 2" to 9".See 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
Sold2016Natural History - Polished Agate Geode PairA sawn and polished pair of banded white agate geodes with brown agate rim and centre hollow lined with quartz crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, BoSee 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 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 - Polished Ammonite Fossil SpecimenJurassic Period, 200-145 million years BP. A sawn and polished pair of ammonite halves from Madagascar, showing its inner chambered structure, in an old white card tray with label reading: 'AMMONITE,See Sold Price
Sold2022Cut and Polished Crystal Geode Half CollectionA group of 15 cut and polished natural crystal geode halves. 450 grams total, 29-60 mm (1 1/8 - 2 3/8 in.). From Brazil. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [15, No ReseSee 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
Sold2019Natural History - Ammonite Display CollectionJurassic Period, 201-145 million years BP. A group of cut and polished ammonite halves revealing the inner chambers, two in old white card trays with A.B. Cotterill Collection, Wollaton, Nottingham, USee Sold Price
Sold2023Natural History - Cut and Polished Fossil AmmoniteJurassic Period, 199-145 million years B.P. A pair of cut and polished fossil ammonite halves, each displaying the gas chambers; possibly Cleoniceras sp. 172 grams total, 95-97 mm (3 3/4 - 3 7/8 in.).See Sold Price
Sold2019Natural History Fossil Fish and Ammonite GroupCretaceous Period, 200-65 million years BP. Group comprising: a small ammonite, cut and polished in two halves, with two small fossil fish specimens, in matrix. 618 grams total, 3.2-14.7cm (1 1/4 - 5See 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
Sold2018AgateItem: Agate Origin: Kardzhali, Rhodope Mts. Bulgaria Size: 5x5x2 cm / 65 gram unusual brown/black specimen. half geode, one side polished. natural color. Please note that this lot has a confidential rSee 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
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
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
Sold2015Natural History - Polished Orthoceras Fossil BlockDevonian Period, 417-354 million years BP. A rectangular stone block displaying orthoceras fossils, polished on all six faces. 8 kg, 30 x 7 x 14cm (11 3/4 x 2 3/4 x 5 1/2"). Property of a London gentlSee Sold Price
Sold2016Natural History - Polished Labradorite SculptureA large polished boulder of labradorite from Madagascar, with rich colour play on most faces, principally blues and golds. 2.99 kg, 18cm (7") From Madagascar; from the historic ‘Victorian Museum’See Sold Price
Sold2023Natural History - Polished Fossil Ammonite PlateJurassic Period, circa 199-145 million years B.P. A composite plate containing a large number of variously sized ammonites, polished upper face. 835 grams, 24.7 cm (9 3/4 in.). From Madagascar. From aSee Sold Price
Jun 07TimeLine Auctions Ltd.Natural History - Polished Fossil Orthoceras and Goniatite Stand on Rock£5