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LOT 2052
Natural History - Historic Native Copper Mineral Specimen with Crystal Formation
2 in. (41 grams, 56 mm).
The specimen with white quartz crystals to the underside. [No Reserve]
ProvenanceCollected in person from various parts of the world mainly between 1957-1966.
From the private mineral collection of Stephen Atkinson, Harpenden, UK.
Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life.
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AUCTIONS:
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LOT 2052
Natural History - Historic Native Copper Mineral Specimen with Crystal Formation
Sold for (Inc. bp): £26
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Natural History - Large Fossil Clavilithes Gastropod
Eocene Period, circa 40 million years B.P.Sold for (Inc. bp): £52
Clavilithes macrospira showing a good structure of the shell; supplied in a cardboard specimen tray. 263 grams, 13.5 cm
Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill. -
Natural History - Knightia Fossil Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £59
Knightia alta specimen on a rectangular matrix. 427 grams, 18 cm
From Wyoming (Green River Formation), USA. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.
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. -
Natural History - 'Australian' Polished Stromatolite Chert Slice
Jeerinah Formation, circa 2.7 billion years B.P.Sold for (Inc. bp): £46
Proterozoic with typical veins in cream, russet, brown and grey, with an identification label to one end. 549 grams, 23 cm
Fropm Pilbara, Western Australia. Ex Australian natural history market. From a Leicestershire, UK, collection.
