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![Collection of Six [6] Cut and Polished Agate Geode Sections](https://timelineauctions.com/zoom_images/zoomthumb/2/5/251029_900x900.jpg "Collection of Six [6] Cut and Polished Agate Geode Sections")
![Collection of Six [6] Cut and Polished Agate Geode Sections](https://timelineauctions.com/zoom_images/zoommap/2/5/251029_200x200.jpg "Collection of Six [6] Cut and Polished Agate Geode Sections")
![Collection of Six [6] Cut and Polished Agate Geode Sections](https://timelineauctions.com/upload/images/items/251029.jpg "Collection of Six [6] Cut and Polished Agate Geode Sections")
LOT 2826
Collection of Six [6] Cut and Polished Agate Geode Sections
4 7/8 - 6 1/4 in. (2.75 kg total, 12.3-16 cm).
Comprising six polished sections, four showing vibrant red to brown to white banding, and having felt-backed bases; one with a cut base and green banding. [6, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2826
Collection of Six [6] Cut and Polished Agate Geode Sections
Sold for (Inc. bp): £46
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Brittlestar Fossil on Matrix
Middle Ordovician Period, circa 450 million years B.P.Sold for (Inc. bp): £111
Ophiuroidea sp. on an irregular matrix. 782 grams, 17.5 cm
From a Cambridgeshire, UK, collection. -
Large Natural Fossil Coral Head
Devonian Period, circa 417-354 million years B.P.Sold for (Inc. bp): £13
A domed unpolished section of a coral head. 1.1 kg, 15.5 cm
From a Cambridgeshire, UK, collection. -
Fossil Knightia Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £91
A Knightia alta fish on a rectangular limestone matrix. 589 grams, 17.8 cm
From a Cambridgeshire, 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.
