Loading, please wait...
LOT 0443
Polished Amethyst Crystal Geode Display with Calcite
CRETACEOUS PERIOD, CIRCA 120-140 MILLION YEARS B.P.
10 5/8 x 7 7/8 x 4 in. (5.68 kg, 27 x 20 x 10 cm).
The outer layer of green celadonite beautifully polished, the interior with dark purple prismatic amethyst crystals, and at the top, an aggregate of white rhombohedral calcite 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 0443
Polished Amethyst Crystal Geode Display with Calcite
Estimate £1,200 - 1,700€1,390 - 1,970 (for guidance only)$1,620 - 2,300 (for guidance only)
-
Bactrian Style Lapis Lazuli and Other Bead Necklace String
20th century A.D.Sold for (Inc. bp): £46
Restrung group of annular, tabular and other types with granulated collars. 38.9 grams, 48 cm
From London, UK, gallery collection, 1990s. -
Mosasaur 'Marine Dinosaur' Fossil Jaw Fragment with Teeth
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £195
A composite jaw fragment set with five teeth. 254 grams, 16 cm
From Morocco. From a Cambridgeshire, UK, collection.
The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish. -
Fossil Mosasaur 'Marine Dinosaur' Tooth Group
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £65
Comprising three Mosasaur Prognathodon teeth, each showing good enamel. 60 grams total, 46-65 mm
From Ouled Abdoun Basin, Morocco, West Africa. 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.
The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.
