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LOT 2759
Large Mauve Cut and Polished Agate and Rock Crystal Geode Slice
8 7/8 in. (625 grams, 22.5 cm).
A translucent geode slice showing banding on the outer edge and a crystal-lined centre, dyed. [No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2759
Large Mauve Cut and Polished Agate and Rock Crystal Geode Slice
Sold for (Inc. bp): £111
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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. -
Mosasaur 'Marine Dinosaur' Fossil Tooth Group
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £52
Comprising two teeth showing good brown enamel, repaired. 67.7 grams total, 45-59 mm
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. -
Citrine Gem Tree on Amethyst Crystal Geode Section
Sold for (Inc. bp): £7
Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished light-coloured citrine pebbles. 510 grams, 20 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
