Loading, please wait...
LOT 2483
White Quartz Geode Slice with Amethyst Core
CIRCA 140-120 MILLION YEARS B.P.
13 3/8 x 9 3/4 x 3/4, 20 1/2 in. (4.54 kg, 34 x 25 x 2cm, 52 cm including stand).
Cut and polished slice showing dense intergrown layer of white quartz crystals, the centre with groups of small lavender-coloured amethyst crystals; mounted on a custom-made display stand.
ProvenanceFrom Artigas, Uruguay.
Property of a London lady.
TimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
LOT 2483
White Quartz Geode Slice with Amethyst Core
Estimate £800 - 1,000€930 - 1,160 (for guidance only)$1,080 - 1,350 (for guidance only)
-
Fossil Belemnite in Matrix with Ammonite Impression
Jurassic Period, circa 201-143 million years B.P.Sold for (Inc. bp): £46
An irregular matrix with Cylindroteuthis puzosiana belemnite and an impression of Kosmoceras ammonite, inked collector's number '55'. 687 grams, 27.1 cm
From Jurassic Oxford Clay, Jason Zone, Calvert, Buckinghamshire, UK. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
Large Cut and Polished Fossil Ammonite Halves
Jurassic Period, circa 199-145 million years B.P.Sold for (Inc. bp): £208
Each with a cut base and polished internal face showcasing the internal gas chambers of the ammonite. 3.77 kg total, 23.5-24 cm
From Madagascar. From the private collection of a Devon, UK, lady. -
![Group of Thirty [30] Medium Size Fossilised Tree Branch Sections](https://timelineauctions.com/upload/images/items/small/256029-s.jpg)
Group of Thirty [30] Medium Size Fossilised Tree Branch Sections
Triassic Period, 251-199 million years B.P.Sold for (Inc. bp): £39
Comprising thirty branch sections in different thicknesses, each showing good bark detail. 2.15 kg total, 42-79 mm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
