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![Cut and Polished Agate Crystal Geode Half Collection [10]](https://timelineauctions.com/zoom_images/zoomthumb/2/2/227990_900x900.jpg "Cut and Polished Agate Crystal Geode Half Collection [10]")
![Cut and Polished Agate Crystal Geode Half Collection [10]](https://timelineauctions.com/zoom_images/zoommap/2/2/227990_200x200.jpg "Cut and Polished Agate Crystal Geode Half Collection [10]")
![Cut and Polished Agate Crystal Geode Half Collection [10]](https://timelineauctions.com/upload/images/items/227990.jpg "Cut and Polished Agate Crystal Geode Half Collection [10]")
LOT 2533
Cut and Polished Agate Crystal Geode Half Collection [10]
2 1/8 - 3 1/2 in. (917 grams total, 53-91 mm).
Comprising ten cut geode sections with exposed internal cavities. [10, No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2533
Cut and Polished Agate Crystal Geode Half Collection [10]
Sold for (Inc. bp): £7
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Fossil Hollardops Trilobite on Matrix
Devonian Period, circa 417-354 million years B.P.Sold for (Inc. bp): £130
Hollardops mesacristata on a matrix. 154 grams, 72 mm
From Atlas Mountains, Morocco, North Africa. From a Cambridgeshire, UK, collection. -
Whitby Dactylioceras Fossil Ammonite
Jurassic Period, Toarcian Stage, circa 180 million years B.P.Sold for (Inc. bp): £7
A rounded pebble half containing a Dactylioceras tenuicostatum sp. specimen. 678 grams, 12.1 cm
From Yorkshire coast. From a Lincolnshire, UK, collection. -
Knightia Fossil Fish in Matrix Group
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £33
Comprising three rounded matrices, each with a Knightia alta specimen. 145 grams total, 63-74 mm
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.
