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LOT 1918
Natural History - Very Large Quartz Crystal Specimen Group
4 1/2 - 5 1/8 in. (1.36 kg total, 11.3-13 cm).
A group of three very large quartz crystal specimens, each with one pointed terminal. [3, No Reserve]
ProvenanceFrom Brazil.
Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 1918
Natural History - Very Large Quartz Crystal Specimen Group
Sold for (Inc. bp): £13
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Natural History - Knightia Fossil Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £52
A pair of Knightia alta fossil fish in a matrix. 336 grams, 12.6 x 11 cm
From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.
Seasonally, some 56 million years ago, in the Green River Region of Wyoming, torrential rains fell on the mountains. The rain flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes evaporated (similar to certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud was deposited over these years, entombing huge numbers of fish. At a much later date volcanic activity uplifted this area to expose their fossils. -
Natural History - Fossil Fly Group
Eocene Period, circa 50 million years B.P.Sold for (Inc. bp): £13
A group of three fossil flies in matrix. 216 grams total, 73-82 mm
From the Green River Formation, South Western Wyoming, U.S.A. Collected between 1930 and 1960. From the collection of the palaeontologist R. Gledhill. -
Natural History - Lapis Lazuli Bead Necklace
Sold for (Inc. bp): £46
A graduated string of tumbled natural variegated lapis lazuli pebble beads with clasp. 120 grams, 46 cm long
Fine condition.
UK gallery, acquired in the 2000s. Property of an English gentleman.
