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LOT 2303
Cathedral Geode Half with Amethyst and Calcite Crystals
13 3/4 in. (17.35 kg, 35 cm).
The cathedral lined with large deep purple amethyst crystals, white dog tooth calcite crystals emerging from the left corner; 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 2303
Cathedral Geode Half with Amethyst and Calcite Crystals
Estimate £1,800 - 2,400€2,090 - 2,780 (for guidance only)$2,430 - 3,240 (for guidance only)
Opening Bid
£900 (EUR 1,044; USD 1,215) +BP*
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Polished Goniatite Fossil Triangular Lidded Box
Devonian Period, circa 400 million years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Carved from a fossiliferous stone and the lid set with a goniatite specimen. 557 grams, 12.8 cm
Ex Cambridgeshire, UK, collection. -
Polished Fossil Coral Head Heart Group
Devonian Period, circa 417-354 million years B.P.Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Comprising five polished hearts, each showing internal coral structure. 106 grams total, 27-36 mm
From a Cambridgeshire, UK, collection. -
British Fossil Vertebra
Cretaceous Period, circa 145-65 million years B.P.Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Large section of a fossilised vertebra with two raised projections on one side, possibly from a mosasaur. 407 grams, 96 mm3 3/4 in.
From Abingdon, Oxfordshire. 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.