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LOT 2268
Natural History - Quartz Crystal on Matrix Display Specimen
5 1/8 in. (607 grams, 13 cm).
Comprising a large irregular matrix with calcite, clear quartz crystal clusters to one side with a large prismatic crystal to one side. [No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2268
Natural History - Quartz Crystal on Matrix Display Specimen
Sold for (Inc. bp): £1
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Natural History - Knightia Fossil Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £26
Comprising three Knightia alta specimens, each on a round matrix. 140 grams total, 74-82 mm
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. -
Natural History - Large Quantity of Rose Quartz Crystal Chips
Sold for (Inc. bp): £13
Comprising various sizes of pale pink chips for decorative use. 527 grams total, 1-26 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Fossilised Wood Section
Triassic Period, circa 250-200 million years B.P.Sold for (Inc. bp): £5
A section of fossilised wood with a polished face. 848 grams, 17 cm
From Madagascar. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection.
