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LOT 2716
Natural History - Historic Cut and Polished Agate Geode Half
6 1/4 in. (2 kg total, 16 cm).
Large specimen with light blue, white, colourless and pale blue crystals, collection number 246. [No Reserve]
ProvenanceAcquired on the UK mineral and fossil market, since 1970.
From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent.
Accompanied by an original historic index file card.
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AUCTIONS:
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LOT 2716
Natural History - Historic Cut and Polished Agate Geode Half
Sold for (Inc. bp): £13
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Natural History - Knightia Fossil Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £33
Knightia alta specimen on a rectangular matrix. 397 grams, 13.3 cm
From Wyoming (Green River Formation), USA. From a Lincolnshire, UK, collection.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time. -
![Natural History - Amethyst Crystal Geode Section Group [20]](https://timelineauctions.com/upload/images/items/small/207946-s(1).jpg)
Natural History - Amethyst Crystal Geode Section Group [20]
Sold for (Inc. bp): £20
Comprising variously sized cut sections, each with small dark purple to lavender-coloured amethyst crystals. 1.1 kg total, 26-48 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Historic Mineral Specimen Collection
Sold for (Inc. bp): £13
Comprising: a large biotite specimen, collection number 101; septarian nodule fragment from Horsenden Hill, Ealing, Middlesex, England, collection number 216; picrite from Cornwall, England, collection number 426; sard from North Transvaal, South Africa, collection number 197; danburite from Maglovec, East Czechoslovakia, collection number 527; fluorite from Derbyshire, England, collection number 200; chalcedony from Cornwall, England, collection number 25; translucent from selenite from Sahara Desert, Libya, collection number 349; quartz 'sceptre' from Beaverhead County, Montana, USA, collection number 581. 292 grams total, 1.1-18.8 cm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Six specimens accompanied by an original historic index file card.
