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LOT 2483
White Quartz Geode Slice with Amethyst Core
CIRCA 140-120 MILLION YEARS B.P.
13 3/8 x 9 3/4 x 3/4, 20 1/2 in. (4.54 kg, 34 x 25 x 2cm, 52 cm including stand).
Cut and polished slice showing dense intergrown layer of white quartz crystals, the centre with groups of small lavender-coloured amethyst crystals; mounted on a custom-made display stand.
ProvenanceFrom Artigas, Uruguay.
Property of a London lady.
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AUCTIONS:
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LOT 2483
White Quartz Geode Slice with Amethyst Core
Estimate £800 - 1,000€930 - 1,160 (for guidance only)$1,080 - 1,350 (for guidance only)
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Box of Twenty-Seven [27] Desert Rose Specimens
Sold for (Inc. bp): £7
Boxed group comprising twenty-seven specimens of radiating clusters of flattened crystals forming flower-like formations. 2.67 kg total, 55-72 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves
Sold for (Inc. bp): £26
Comprising five translucent, polished slices and ten cut and polished geode sections. 1.68 kg total, 5.3-14.2 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Crotalocephaline Trilobite in Matrix
Middle Devonian, circa 380 million years B.P.Sold for (Inc. bp): £85
Crotalocephaline gibbus on a matrix showing characteristic sharp pygidial spines. 219 grams, 93 mm
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.
