Loading, please wait...
Details
LOT 1883
Natural History - Cut and Polished Brazil Agate Crystal Geode End and Slice Group [3]
3 1/8 - 3 1/2 in. (1.3 kg total, 80-89 mm).
All three freestanding and with one polished side to expose attractive pending. [3, No Reserve]
Provenance
From Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
VETTING:
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 1883
Natural History - Cut and Polished Brazil Agate Crystal Geode End and Slice Group [3]
Sold for (Inc. bp): £13
RELATED LOTS
-
Natural History - African 'T-rex' Fossil Tooth and Root
Cretaceous Period, circa 145-93 million years B.P.Sold for (Inc. bp): £104
From Carcharodontosaurus saharicus (African T-rex) with root. 29.2 grams, 80 mm
From the Tegana formation of the Sahara Desert, Morocco. Acquired during 1980s. From an old Lincolnshire, UK, collection.
The Carcharodontosaurus saharicus was one of the largest predators (larger than its distant North American T-Rex cousin) of all time and is also related to Allosaurus and the South American Giganotosaurus. -
Natural History - White Pecopteris Fern Specimen Group
Devonian Period, circa 417-354 million years B.P.Sold for (Inc. bp): £13
Five Pecopteris sp. fern specimens on irregular matrices 3.04 kg total, 15-25 cm
From St. Clair, Pennsylvania, USA. Acquired during the 1980s. From the Pradi Collection, Boston, USA.
These fern fossils are very common from coal mining areas around the world. However, it is the unique state of preservation of the white on the black shale that gives the St. Clair ferns their beauty and rarity. This combination is not found anywhere else in the world. -
Natural History - Historic Cronstedtite Mineral Specimen
Sold for (Inc. bp): £4
Comprising a heterogenic mass of dark brown crystals with white quartz; supplied in a display box. 41 grams, 57 mm including box
Collected in person from various parts of the world mainly between 1957-1966. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life.
Cronstedtite is an uncommon mineral that occurs as a hydrothermal product in ore veins.
