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LOT 2364
Polished Amethyst Crystal Geode Display with Calcite
CIRCA 140-120 MILLION YEARS B.P.
10 5/8 x 7 7/8 x 4 in. (5.68 kg, 27 x 20 x 10 cm).
The outer layer of green celadonite beautifully polished, the interior with dark purple prismatic amethyst crystals, and at the top, an aggregate of white rhombohedral calcite 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 2364
Polished Amethyst Crystal Geode Display with Calcite
Estimate £1,000 - 1,400€1,160 - 1,620 (for guidance only)$1,350 - 1,890 (for guidance only)
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Extinct Otodus Fossil Shark's Teeth Display
Eocene Epoch, circa 53-33 million years B.P.Sold for (Inc. bp): £130
Freestanding matrix set with seven Otodus obliquus teeth showing good enamel. 1.94 kg, 16 cm
Ex Cambridgeshire, UK, collection. -
Fossil Harpes Trilobite in Matrix
Middle Devonian Period, circa 380 million years B.P.Sold for (Inc. bp): £26
With an ovate cephalon and an outer bilaminar brim extending posteriorly to long genal prolongations. 475 grams, 99 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. -
![Group of Ten [10] Meteorite Crater Tektite Specimens](https://timelineauctions.com/upload/images/items/small/256051-s.jpg)
Group of Ten [10] Meteorite Crater Tektite Specimens
Sold for (Inc. bp): £59
Comprising ten irregular, rounded pieces with typical surface indentations. 45 grams total, 16-33 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
Tektites are lumps of black or dark grey natural glass produced from melted crustal rocks caused by large hypervelocity meteorite impacts on sediments.
