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LOT 2025
Natural History - Large Boxed Historic Mica on Quartz Crystal Specimen
4 in. (460 grams, 10.2 cm).
Comprising two clusters of large yellowish-brown mica crystals on white quarts with three large translucent to white quartz crystals. [No Reserve]
ProvenanceEx Gregory, Bottley & Lloyd (Gregory's).
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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LOT 2025
Natural History - Large Boxed Historic Mica on Quartz Crystal Specimen
Sold for (Inc. bp): £46
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Natural History - Knightia Fossil Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £85
Knightia alta specimen on a rectangular matrix. 200 grams, 11.7 cm
From Wyoming (Green River Formation), USA. Acquired during 1980s. From the Pradi Collection, Boston, U.S.A.
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 - Medium Green Fuchsite Mineral Specimen Group [20]](https://timelineauctions.com/upload/images/items/small/207983-s.jpg)
Natural History - Medium Green Fuchsite Mineral Specimen Group [20]
Sold for (Inc. bp): £3
Comprising large irregular specimens of light to dark green colour. 1.53 kg total, 45-75 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Large Size Cut and Polished Pink Agate Crystal Geode Slice
Sold for (Inc. bp): £52
With enhanced pink-colour and also showing translucent to opaque quartz crystals. 539 grams, 23.2 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
