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LOT 2642
Large Cave Stalagmite Section
41 1/2 in. (76 kg, 105 cm).
A colossal cut section of cream-coloured stalagmite showing natural ripples. [No Reserve]
ProvenancePreviously 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.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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Round Amethyst Crystal Geode with Polished Borders
Estimate: £3,000 - 4,000 (+bp*)
Opening Bid: £1,500
An unusual rounded geode section with stalagmite-like formations of calcite and quartz rising from the base, polished borders revealing the celadonite shell with some exterior basalt visible; accompanied by a custom-made display stand. 17.5 kg total, 29.5 cm high including stand
From Artigas, Uruguay. Property of a London lady. -
Crystal and Mineral Display Specimen Collection
Sold for (Inc. bp): £13
Comprising: fluorite, pyrite, sodalite, double-terminated quartz crystal, quartz, kyanite, almandine garnet, and others. 707 grams total, 3.3-10.2 cm
Property of a North West London, UK, lady. -
Tray of Mineral Specimens
Sold for (Inc. bp): £156
A group of various natural and polished crystal and mineral specimens. 1.04 kg, 39.5 x 23.6 cm total
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). From the private collection of John Meredith, acquired since the 1990s; thence by descent.
