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LOT 1901
Natural History - Historic Cassiterite Ore Collection
1 3/4 in. (1.68 kg total, 44-94 mm).
Comprising five specimens, one with radially fibrous botryoidal crusts. [5, 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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Natural History - British Fossil Ammonite
Cretaceous Period, 145-100.5 million years B.P.Sold for (Inc. bp): £13
Euhoplites probiscidus with regularly disposed spines to the outer shell; supplied in a wooden storage box. 20.3 grams, 42 mm
From a Norfolk, UK, collection. -
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 - Mixed Cut and Polished Agate Slice Collection [10]](https://timelineauctions.com/upload/images/items/small/208004-s.jpg)
Natural History - Mixed Cut and Polished Agate Slice Collection [10]
Sold for (Inc. bp): £26
Each with attractive banding, some with the internal cavity filled with crystals; some with enhanced colour. 1.06 kg total, 9.8-12 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
