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LOT 2338
Two Large Cut and Polished Agate Geode Slices
6 3/8 - 6 3/4 in. (478 grams total, 16.1-17 cm).
Two highly polished translucent slices with brown and grey banding with quartz crystal formation inside, one resembling a 'smiley face'. [2, 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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Knightia Fossil Fish Plate Group
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £46
Comprising three roughly oval matrices with Knightia alta specimens. 165 grams total, 70-74 mm
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. -
Massive Deep Purple Amethyst Crystal Geode Display
Circa 140-120 million years B.P.Estimate: £5,000 - 7,000 (+bp*)
Opening Bid: £2,750
A large freestanding geode display with polished edges, the interior lined with rich, deep purple amethyst crystals. 177 kg, 63 x 72 x 37 cm
From Artigas, Uruguay. Property of a London lady. -
Polished Fossil Coral Head Heart Group
Devonian Period, circa 417-354 million years B.P.Sold for (Inc. bp): £39
Comprising five polished hearts, each showing internal coral structure. 106 grams total, 27-36 mm
From a Cambridgeshire, UK, collection.
