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LOT 2695
Cut and Polished Australian 'Thunder Egg' Agate Geode Pair
2 3/4 in. (331 grams total, 71-72 mm).
Displaying strong red and orange banding to the centre. [2, No Reserve]
ProvenanceFrom Agate Creek, Australia.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2695
Cut and Polished Australian 'Thunder Egg' Agate Geode Pair
Sold for (Inc. bp): £26
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Historic 'Australia' Boulder Opal Mineral Specimen
Sold for (Inc. bp): £156
The matrix showing pale sky-blue opal, collection number 425, with an old James Walker label. 34.8 grams, 39 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card. -
Fossil Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £33
Comprising two complete Knightia alta specimens and remains of a third fish. 622 grams, 13.1 x 13.7 cm
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. -
Dactylioceras Fossil Ammonites
Lower Jurassic Period, circa 180 million years B.P.Sold for (Inc. bp): £52
A matrix containing multiple fossils and two clear Dactylioceras specimens. 140 grams, 90 mm
From Germany. From a Cambridgeshire, UK, collection.
