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LOT 2121
Natural History - Calcite and Hematite on Pyrite Crystal Specimen
3 1/8 in. (262 grams, 80 mm).
Comprising brown and white scalenohedral calcite crystals on small pyrite crystals with acicular and druzy haematite; supplied in a labelled cardboard tray. [No Reserve]
ProvenanceFrom Huanuco, Peru.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2121
Natural History - Calcite and Hematite on Pyrite Crystal Specimen
Sold for (Inc. bp): £13
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Natural History - Fossil Deer Antler Group
Pleistocene Period, circa 1.8 million years B.P.Sold for (Inc. bp): £39
Comprising two section of Odocoileus virginianus antler. 231 grams total, 9.5-10.4 cm
From Alachua Formation, Taylor County, Florida, USA. From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Fossil Pine Cone
Eocene Period, circa 55-33 million years B.P.Sold for (Inc. bp): £33
Agatized Dicotaledon fruit specimen; supplied in a carboard specimen tray. 21.4 grams, 50 mm
From the Western Sahara Desert, Morocco. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological 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. 168 grams, 11 cm
From Wyoming (Green River Formation), USA. Acquired during 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.
