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LOT 2843
Citrine Gem Tree on Amethyst Crystal Geode Section
7 1/2 in. (475 grams, 19 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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![A Collection of Twelve [12] Large Amethyst Mineral Specimens](https://timelineauctions.com/upload/images/items/small/250989-s.jpg)
A Collection of Twelve [12] Large Amethyst Mineral Specimens
Sold for (Inc. bp): £7
A boxed group of geode sections with amethyst crystals, the colours ranging from very pale purple to dark purple. 3.51 kg total including box, 5.6-12 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Knightia Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £59
A Knightia alta fish on a rectangular limestone matrix with remains of another one on the reverse. 453 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. -
![Collection of Twenty [20] Cut and Polished Agate Geode Slices](https://timelineauctions.com/upload/images/items/small/251020-s.jpg)
Collection of Twenty [20] Cut and Polished Agate Geode Slices
Sold for (Inc. bp): £104
Comprising twenty translucent polished slices, some showing crystalline areas, some dyed. 415 grams total, 5-11.9 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
