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LOT 2554
Large Rainbow-coloured Carborundum Crystal Display Specimen
6 1/4 in. (1 kg, 16 cm).
A large cluster of silicon carbide showing beautiful iridescence. [No Reserve]
ProvenanceFrom the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.
FootnotesCarborundum rarely occurs in nature, but is commercially formed by heating carbon and silicon at very high temperatures, producing extremely strong bands of crystals.
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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LOT 2554
Large Rainbow-coloured Carborundum Crystal Display Specimen
Sold for (Inc. bp): £46
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Fossil Plesiosaur 'Maine Dinosaur' Vertebrae Pair
Jurassic Period, circa 200-145 million years B.P.Sold for (Inc. bp): £39
Comprising two main bodies, one with remains of other bone fragments to the side. 1000 grams total, 95 - 105 mm
From a Cambridgeshire, UK, collection. -
Medical Educational Skull
20th century A.D.Sold for (Inc. bp): £520
Human skull with upper cranium detached and contents removed; fasteners and locating pins, securing springs; some teeth absent. 579 grams, 20 cm wide
From a collection acquired on the UK art market from various auction houses and collections mostly before 2000. From an important Cambridgeshire estate; thence by descent.
This item is for collection only. -
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Fossil Otodus Shark Tooth Display
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £33
Comprising a large Otodus obliquus tooth; supplied in a display frame. 28.3 grams, 60 mm (64 grams total, 13 cm high including case)
From a Cambridgeshire, UK, collection. Property of a Cambridgeshire, UK, gentleman.
