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LOT 2626
Quartz and Pyrite Mineral Specimen
3 in. (175 grams, 74 mm).
An irregular specimen with white quartz and bright pyrite. [No Reserve]
ProvenanceFrom Cornwall, UK.
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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Fossil Petraster Starfish Pair
Ordovician Period, circa 485-444 million years B.P.Sold for (Inc. bp): £7
Comprising two irregular matrices, each with Petraster sp. specimen. 358 grams total, 88-98 mm
From a Cambridgeshire, UK, collection. -
![Large Pyrite Crystal Display Group [6]](https://timelineauctions.com/upload/images/items/small/227947-s.jpg)
Large Pyrite Crystal Display Group [6]
Estimate: £30 - 40 (+bp*)
Opening Bid: £3
Comprising large irregular chunks. 1.32 kg total, 59-77 mm
From Peru. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Diplomystus Fossil Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £59
Diplomystus sp. in a rectangular matrix. 1.52 kg, 22 x 16 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.
