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LOT 2320
Citrine Gem Tree on Amethyst Crystal Geode Section
6 1/4 in. (505 grams, 16 cm).
Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished light-coloured citrine pebbles. [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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Woolly Rhinoceros Large Upper Jaw Tooth
Devensian Period, circa 110,000-12,000 years B.P.Sold for (Inc. bp): £39
Comprising a partial root and the tooth with dark enamel. 210 grams, 10.8 cm
Perma frost of Siberia. From a Netherlands collector in the 2020s. From a private collection. -
![Group of Ten [10] Cut and Polished Agate Geode Slices](https://timelineauctions.com/upload/images/items/small/256012-s.jpg)
Group of Ten [10] Cut and Polished Agate Geode Slices
Sold for (Inc. bp): £65
Attractive group of polished translucent slices showing contrasting bands, two showing quartz crystal formations, and with dendritic inclusions and four with horizontal banding. 795 grams total, 9.2-12.7 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Knightia Multiple Fossil Fish Plate
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £52
An oval plate with four Knightia alta specimens. 161 grams, 13.8 cm
From Wyoming, 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 Uinta, 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.
