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LOT 2022
Natural History - Amethyst Crystal Specimen Group
1 - 2 5/8 in. (2.41 kg total, 25-67 mm).
A group of 100 amethyst geode sections displaying purple crystals of various sizes and shades of purple. [100, No Reserve]
ProvenanceMineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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Natural History - Fossil Diplomystus Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £46
A fossil Diplomystus sp. fish in a matrix. 500 grams, 16.5 x 11.7 cm
From the Green River Formation, Lincoln County, Wyoming, U.S.A. From an old Lincoln, UK, collection.
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 Wood Slice
Miocene Period, circa 20 million years B.P.Sold for (Inc. bp): £33
A polished fossil tropical hardwood slice section displaying natural bark, with one end polished to reveal the inner wood detail. 508 grams, 19 cm
From Indonesia. From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Fossil Macrolepidotus Fish
Middle Devonian Period, circa 360 million years B.P.Sold for (Inc. bp): £117
A fossil Osteolepis macrolepidotus fish in matrix. 830 grams, 18.5 cm
From Cruaday Hill Quarry, Orkney Isles, Scotland. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection.
