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LOT 2427
Massive Cave Stalagmite Section
35 1/2 in. (66.7 kg, 90 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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Fossil Knightia Alta Fish Group
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £46
Comprising three rounded matrices, each with a Knightia alta specimen, one with two specimens. 189 grams total, 7.9-10.5 cm
From USA. From a Lincolnshire, UK, collection. -
Polished Fossil Orthoceras and Goniatite Display
Devonian Period, circa 400 million years B.P.Sold for (Inc. bp): £20
A freestanding textured matrix set with Goniatite and Orthoceras. 766 grams, 15.7 cm
From Morocco. From a Cambridgeshire, UK, collection. -
Mixed Crystal and Mineral Specimen Group
Sold for (Inc. bp): £46
Comprising: fire opal from Lomo Deltoro Mine, Zimapan, Zimapan Municipality, Hidalgo, Mexico; quartz from Geevor Mine, Pendeen, Cornwall; stilbite from the Storr, Portree, Trotternish, Isle of Skye, Scotland; baryte from Silverband Mine, Dun Fell, Milburn, Cumbria; quartz from Rostowrack China Clay pit, Cornwall; chalcopyrite and pyrite from Mount Wellington Mine, Twelveheads, Cornwall; hedenbergite from Lunner, Akershus, Norway; dolomite from Keokuk, Lee County, Iowa, USA; fluorite from Heights Mine, Westgate, Durham; quartz from Dolcoath Mine, camborne, Cornwall. 1.1 kg total, 3.5-10.4 cm
From the property of a Cornwall, UK, gentleman.