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LOT 2309
Natural History - Amethyst Crystal Geode Section
3 5/8 in. (555 grams, 92 mm).
A cut section of amethyst crystals of good colour. [No Reserve]
ProvenanceEx Lincolnshire, UK, collection.
CONDITIONTimeLine 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.
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Natural History - Large Historic Roman 'Spartan Basalt' Cut & Polished Green Porphyry Sheet
Sold for (Inc. bp): £845
A very large lacquered cut section, mined in Greece, cut and polished on one side, probably recycled material mined in ancient Roman times. 1.01 kg, 32 cm
From Greece. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Fossil Diplomystus Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £39
Diplomystus sp. specimen on a rectangular matrix. 234 grams, 13.7 cm
From Wyoming (Green River Formation), USA. From an old Bristol, UK, collection.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time. -
![Natural History - Mocha Stone (Dendritic Limestone) Tile Group [3]](https://timelineauctions.com/upload/images/items/small/211425-s.jpg)
Natural History - Mocha Stone (Dendritic Limestone) Tile Group [3]
Sold for (Inc. bp): £26
Superb examples exhibiting finely formed dendrites of manganese oxide. 218 grams total, 65-92 mm
From India. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
