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LOT 2782
Quartz Crystal with Graphite with Moving Bubble Mineral Display Specimen
3 1/4 in. (100 grams, 83 mm).
A double terminated quartz crystal with graphite inclusions, a large liquid-filled cavity on one side in which the graphite particles are moving freely. [No Reserve]
ProvenanceFrom Cong Li, Hunan Province, China.
Property of a North West London, UK, lady.
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AUCTIONS:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
LOT 2782
Quartz Crystal with Graphite with Moving Bubble Mineral Display Specimen
Sold for (Inc. bp): £312
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Crystal and Mineral Display Specimen Collection
Sold for (Inc. bp): £39
Comprising: selenite, almandine garnet, quartz, peacock ore, ruby, and others. 225 grams total, 23-47 mm
Property of a North West London, UK, lady. -
North American and Other Fossil Collection
Mainly Cretaceous Period, 145-65 million years B.P.Sold for (Inc. bp): £20
Group of fourteen fossil teeth and other parts, each in a collector's card with window, inked catalogue number with notes relating to identification, findspot and dating; mounted in a vinyl sheet. 62 grams total, 24.5 x 22.5 cm
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
Large Cave Stalagmite Section
Sold for (Inc. bp): £26
A colossal cut section of cream-coloured stalagmite showing natural ripples. 66.7 kg, 90 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 accumulation of material deposited from ceiling drippings. They are typically formed by the deposition of calcium carbonate and other minerals, which is 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.
