Sold2024Natural History - Large Historic Cut & Polished Porphyry Slice.Comprising lacquered porphyry slice of irregular shape, cut and polished on one side, probably recycled material mined in ancient Roman times between the 1st and 5th century A.D. 917 grams, 28 cm (11See Sold Price
Sold2022Polished 'Alien' Septarian Egg Half with Exposed Crystalline InteriorA cut and polished septarian egg half, the internal cavity filled with clusters of grey calcite crystals. 677 grams, 11.3 cm (4 1/2 in.) From Mexico. Mineral Imports, London, UK. Gregory, Bottley & LlSee 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
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 - Large 'Winking Smiley Face' Cut and Polished Agate DisplayA cut and polished agate slice displaying crystals to the exposed inner surfaces; a naturally-occurring smiling face formed in the polished surface composed of two large circular eyes and a crescent-sSee 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
Sold2023Natural History - Large NWA 15250 L5 Chondrite Meteorite Slice in CaseFound 2022 A.D. The cut and polished slice held in a custom-made collector's display box. 51 grams total, 84 mm wide including case (3 3/8 in.). From the Sahara Desert, North Africa. Property of a SusSee Sold Price
Sold2017Natural History Large Fluorite Crystal Obelisk.A cut and polished fluorite crystal obelisk with bands of green and purple colour. 240 grams, 13cm (5"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (See Sold Price
Sold2017Natural History Large Fluorite Crystal Obelisk.A cut and polished fluorite crystal with bands of green and white colour. 175 grams, 90mm (3 1/2"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (1981-See Sold Price
Sold2016Natural History - Large Polished Fluorite Point PairA pair of large prism cut fluorite polished points with bands of colour ranging from jade green, purple and clear, with 'rainbow' reflections in the body and at the points. From China; from the historSee Sold Price
Sold2016Natural History - Large Polished Snowflake ObsidianA large cut and polished sheet of snowflake obsidian with white spherulites of albite. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly GSee Sold Price
Sold2019Natural History - Polished Fossil OrthocerasOrdovician Period, 360 million years BP. A large cut and polished straight cephalopod Orthoceras sp. 295 grams total, 12.5cm (5"). From an old Lincolnshire collection 1980s; from Erfoud, Morocco, NortSee 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 - 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
Sold2016Natural History - Polished Malachite Display BlockA large piece of cut and polished malachite with lustrous sheen of pale and dark green, pale crystals between nodules. From the historic ‘Victorian Museum’ or later collection of Gregory, BottleySee 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
Sold2017Large Polished Septarian Nodule Display Piece.A large septarian nodule half, cut and polished displaying grey angular crystals in a honeycomb matrix of pale yellow crystals. 2.8 kg, 18.3cm (7 1/4"). From a historic ‘Victorian Museum’ collectiSee Sold Price
Sold2017Natural History - Cut & Polished AmmoniteUpper Cretaceous Period (Campanian), 76-75 million years BP. A large ammonite, from Fox Hills Formation, South Dakota, USA, cut and polished displaying the distinctive pattern of the cross-section chaSee Sold Price
Sold2023Natural History - Polished Fossil Goniatite Book EndsDevonian Period, circa 417-354 million years B.P. Cut and polished from a single fossiliferous block and each side set with a large Goniatite sp. specimen. 3.4 kg total, 15.3 cm high each (6 in.). FroSee 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
Sold2015Natural History - Stone Sphere and Egg20th century AD. A mixed pair of polished stones comprising: a petrified wood ovoid in grey and brown showing original wood grain, on a stand with three scrolled legs; a large dark iridescent obsidianSee Sold Price
Sold2023Natural History - Large Polished Fossil 'Sand Dollar' Multi DisplayMiocene Period, circa 25 million years B.P.. Composed of several fossil sea urchins or sand dollars in a matrix. 4.6 kg, 34.5 cm (13 5/8 in.). From France.See Sold Price
Sold2023Natural History - Large Polished Goniatite Fossil DisplayUpper Devonian Period, 370 million years B.P.. The freestanding textured matrix containing four specimens. 1.77 kg, 18 cm high (7 1/8 in.). Ex Cambridgeshire, UK, collection. [No Reserve]See Sold Price
Jun 07TimeLine Auctions Ltd.Natural History - Large Polished Copal Amber with Termite Nest and Termites£5
2 days LeftMiami Auctions & Appraisals LLC Antique Old European Cut Diamond Green Jade Platinum Floral Marquise Large Brooch Pendant$25,750