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LOT 1915
Natural History - Polished Aventurine Quartz Crystal Tree on Amethyst Crystal Base
7 in. (563 grams, 18 cm).
The flexible metal branches tipped with polished aventurine pebbles; the matrix with clusters of purple amethyst crystals. [No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 1915
Natural History - Polished Aventurine Quartz Crystal Tree on Amethyst Crystal Base
Sold for (Inc. bp): £20
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Natural History - A Large Quantity of Pyrite 'Fool's Gold' Crystal Grains
Sold for (Inc. bp): £13
Including various size grains. 4 kg total, 1-6 mm
From Huanuco, Peru. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Large Fossil Shark Vertebra
Upper Palaeocene Period, circa 56 million years B.P.Sold for (Inc. bp): £39
From Otodus obliquus Agassiz 1843 (mackerel shark). 254 grams, 85 mm
From Ouled Abdoun Basin Formation (Phosphate beds), Oued Zem, Morocco. From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Cut and Polished Fossil Ammonite
Middle Cretaceous Period, circa 150 million years B.P.Sold for (Inc. bp): £46
Cleoniceras sp. displaying the distinctive pattern of the cross-section chambers, some iridescence to outer surfaces. 220 grams, 95 mm each
From Madagascar. Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill.
