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LOT 2463
Natural History - Cut and Polished Amethyst Crystal Geode Pair
4 - 4 1/4 in. (1.07 kg total, 10.2-10.6 cm).
Spherical geode cut in half to expose the internal cavity filled with dark purple prismatic amethyst crystals and large quartz crystals with goethite(?). [2, No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2463
Natural History - Cut and Polished Amethyst Crystal Geode Pair
Sold for (Inc. bp): £39
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Natural History - British Promicroceras Fossil Ammonite Group
Jurassic Period, circa 190 million years B.P.Sold for (Inc. bp): £52
Comprising four irregular matrices with Promicroceras planicosta fossils. 384 grams total, 57-85 mm
Found Charmouth, Dorset, England. -
Natural History - Large Grade A Cut and Polished Agate Slice
Sold for (Inc. bp): £33
In enhanced blue colour, showing dark banding separating quartz filled layers. 770 grams, 25.3 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Polished Douvilleiceras Fossil Ammonite Group
Middle Cretaceous Period, circa 150 million years B.P.Sold for (Inc. bp): £26
Comprising three Douvilleiceras sp. (sometimes known as a goat horn) polished to reveal rich calcites and suture patterns. 120 grams total, 45-46 mm
From the North-East Coast of Madagascar in the jungles of Mahajanga. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection.