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LOT 1965
Natural History - Ocean Jasper Mineral Specimen
2 5/8 in. (215 grams, 68 mm).
A specimen of ocean jasper, displaying one polished face and patches of crystals to the exposed inner surface. [No Reserve]
ProvenanceFrom Madagascar.
Private collection, Munster, Germany.
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AUCTIONS:
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Natural History - Large Meteoritic Tektite Group
Sold for (Inc. bp): £169
A group of ten large tektite meteoric glass, melted terrestrial rock splashed from an impact crater, most roughly ovoid in shape. 850 grams total, 41-52 mm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
Tektites are lumps of black or dark grey natural glass produced from melted crustal rocks that are caused by large hypervelocity meteorite impacts on sediments. -
Natural History - Knightia Fossil Fish in Matrix
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £65
A rectangular sedimentary matrix displaying at least four fossil Knightia sp. fish. 624 grams, 16 cm
Ex 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. -
Natural History - Box of Iceland Spar Mineral Specimens
Sold for (Inc. bp): £169
A group of over 40 Iceland Spar mineral specimens; held in a cardboard box. 2.57 kg total, 35-48 mm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
