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LOT 2915
Rose Quartz Mineral Chip Group
1/8 - 1 1/4 in. (1 kg total, 1-33 mm).
A large quantity of pink-coloured chips in various sizes. [No Reserve]
ProvenanceFrom Madagascar.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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Bismuth Crystal Specimen
Sold for (Inc. bp): £26
Cluster of hopper crystals exhibiting a stairstep crystal structure and iridescent colours. 18.7 grams, 40 mm
From a Cambridgeshire, UK, collection. -
Mosasaur 'Marine Dinosaur' Fossil Tooth on Composite Rock
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £33
The tooth showing dark brown enamel, set in a sandstone matrix with a composite root for display. 567 grams, 15 cm
From Morocco, North Africa. From a Cambridgeshire, UK, collection.
The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish. -
Massive Cave Stalagmite Section
Sold for (Inc. bp): £20
A colossal cut section of cream-coloured stalagmite showing natural ripples. 76 kg, 105 cm
Previously from a Hong Kong collection. Ex property of a London, UK, gentleman, 1990s.
A stalagmite is an upward-growing mound of mineral deposits growing on the floor of a cave due to the accumulation of material deposited from ceiling drippings. They are typically formed by the deposition of calcium carbonate and other minerals, which are precipitated from mineralised water solutions. Limestone is the chief form of calcium carbonate rock, which is dissolved by water that contains carbon dioxide, forming a calcium bicarbonate solution in underground caverns.
