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![Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]](https://timelineauctions.com/zoom_images/zoomthumb/2/1/211320_900x900.jpg "Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]")
![Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]](https://timelineauctions.com/zoom_images/zoommap/2/1/211320_200x200.jpg "Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]")
![Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]](https://timelineauctions.com/upload/images/items/211320.jpg "Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]")
LOT 2271
Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]
3 - 4 1/4 in. (412 grams total, 7.7-10.9 cm).
With brown and black banding, each felt backed. [6, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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 2271
Natural History - Cut and Polished Agate Crystal Geode Coaster Group [6]
Sold for (Inc. bp): £7
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Natural History - Agatized Fossil Tree Trunk Cut Slice
Triassic Period, 251-199 million years B.P.Sold for (Inc. bp): £7
With one partially polished face displaying dark red banding. 1.04 kg, 21.5 cm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
![Natural History - Grade A Cut and Polished Agate Slice Collection [3]](https://timelineauctions.com/upload/images/items/small/211411-s.jpg)
Natural History - Grade A Cut and Polished Agate Slice Collection [3]
Sold for (Inc. bp): £4
In enhanced purple and blue colour. 376 grams total, 11.5-14.5 cm
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): £111
Diplomystus sp. specimen on a matrix. 328 grams, 14.5 cm
From Wyoming (Green River Formation), USA. From a Lincolnshire, 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.
