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LOT 2610
Very Large Cut and Polished Mauve Agate Geode Slice
9 1/8 in. (640 grams, 23.3 cm).
Translucent with a thick band of white quartz crystals, dyed to enhance the internal structure. [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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Fossil Whale Ear Bone
Miocene Period, circa 23-5.3 million years B.P.Sold for (Inc. bp): £72
Tympanic bone from the inner ear of a whale. 500 grams, 13.2 cm
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; with collection no.VM98; his collection of antiquities and natural history was formed since 1948; thence by descent. -
![Large Rock Crystal Quartz Point Collection [6]](https://timelineauctions.com/upload/images/items/small/227846-s.jpg)
Large Rock Crystal Quartz Point Collection [6]
Sold for (Inc. bp): £26
Comprising six clear prismatic points. 1.1 kg total, 9-12.3 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Green River Fish
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £39
Comprising three rounded matrices, each with a Knightia alta specimen. 220 grams total, 87-92 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.
