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LOT 2246
Natural History - Unpolished Cut Amethyst Crystal Geode Slice
9 5/8 in. (613 grams, 24.5 cm).
With two straight edges, cut to expose the inner structure of a geode with layers of amethyst and other crystals. [No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2246
Natural History - Unpolished Cut Amethyst Crystal Geode Slice
Sold for (Inc. bp): £13
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Natural History - Polished Copal with Insects
Over 3 million years B.P.Sold for (Inc. bp): £26
Containing several insects and other inclusions. 12.1 grams, 12.5 cm
From Madagascar. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Petraster Fossil Starfish Group
Ordovician Period, circa 485-444 million years B.P.Sold for (Inc. bp): £13
Comprising three Petraster sp. specimens, each on a matrix. 1.3 kg total, 9-12.5 cm
From a Cambridgeshire, UK, collection. -
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.
