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LOT 2447
Fossil Fern in Matrix
TRIASSIC PERIOD, CIRCA 228-208 MILLION YEARS B.P.
3 3/4 in. (91 grams, 95 mm).
Thinnfeldia talgarbarensis showing two branching leaves on a matrix. [No Reserve]
ProvenanceFrom the Blackstone formation, Dinmore Quarry, Queensland, Australia.
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.
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AUCTIONS:
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Box of Nineteen [19] Large Rose Quartz Specimens
Sold for (Inc. bp): £26
Boxed group of vibrant pink rose quartz specimens. 5.4 kg total, 5.7-10.9 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Large Group of One Hundred [100] Rock Crystal Quartz Specimens
Sold for (Inc. bp): £36
Comprising mainly twinned and intergrown prismatic crystals. 1.27 kg total, 28-42 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
White Quartz Geode Slice with Amethyst Core
Circa 140-120 million years B.P.Estimate: £800 - 1,000 (+bp*)
Opening Bid: £440
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. 4.54 kg, 34 x 25 x 2cm, 52 cm including stand
From Artigas, Uruguay. Property of a London lady.