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LOT 2548
Natural History - Aventurine Gem Tree on Amethyst Crystal Geode Section
6 7/8 in. (691 grams, 17.5 cm high).
Irregular geode matrix with purple amethyst crystals; the metal branches tipped with polished dark and light green aventurine pebbles. [No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2548
Natural History - Aventurine Gem Tree on Amethyst Crystal Geode Section
Sold for (Inc. bp): £13
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Natural History - Fossil Bahariasaurus Dinosaur Tooth
Cretaceous Period, circa 100-95 million years B.P.Sold for (Inc. bp): £52
A fossil tooth from the dinosaur Bahariasaurus ingens. 6.79 grams, 36 mm
From the Tegana Formation, Sahara Desert, Morocco, North Africa. Acquired 1980s. Old Bristol, UK, collection.
Bahariasaurus ingens was a mid-sized carnivore, and the teeth are different from Carcharodontosaurus in being thinner but having a thicker more triangular X-section. -
Natural History - Fossil Brittle Star Group
Middle Ordovician Period, circa 450 million years B.P.Sold for (Inc. bp): £13
Three matrices with Ophiuroidea sp. specimens. 270 grams total, 79-85 mm
From El Kaid Errami, Tafilalt, Morocco, North Africa. From an old German collection. -
Natural History - A Collection of Fossils
Devonian to Jurassic Period, circa 417-145 million years B.P.Sold for (Inc. bp): £20
Mixed group including Perisphinctids indogermanus ammonite, Goniatite and Orthoceras. 584 grams total, 7.4-15.5 cm
From a collection acquired on the UK art market from various auction houses and collections mostly before 2000. From an important Cambridgeshire estate; thence by descent.
