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![Dark Amber Topaz Crystal Specimen Group [20]](https://timelineauctions.com/zoom_images/zoomthumb/2/2/227954(1)_900x900.jpg "Dark Amber Topaz Crystal Specimen Group [20]")
![Dark Amber Topaz Crystal Specimen Group [20]](https://timelineauctions.com/zoom_images/zoommap/2/2/227954(1)_200x200.jpg "Dark Amber Topaz Crystal Specimen Group [20]")
![Dark Amber Topaz Crystal Specimen Group [20]](https://timelineauctions.com/upload/images/items/227954(1).jpg "Dark Amber Topaz Crystal Specimen Group [20]")
LOT 2610
Dark Amber Topaz Crystal Specimen Group [20]
7/8 - 1 3/8 in. (245 grams total, 21-34 mm).
Comprising twenty irregular pebbles. [20, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
TimeLine 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:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
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![Cut and Polished Felt-Backed Agate Geode Coaster Set [6]](https://timelineauctions.com/upload/images/items/small/228294-s.jpg)
Cut and Polished Felt-Backed Agate Geode Coaster Set [6]
Sold for (Inc. bp): £20
A graduated set displaying brown banding and white crystals to the centre. 640 grams total, 8.5-11.2 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Knightia Fossil Fish in Matrix Group
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £65
Comprising three rounded matrices, each with a Knightia alta specimen. 145 grams total, 63-74 mm
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. -
![Desert Rose Gypsum Mineral Specimen Group [100]](https://timelineauctions.com/upload/images/items/small/228271-s.jpg)
Desert Rose Gypsum Mineral Specimen Group [100]
Sold for (Inc. bp): £7
Comprising one hundred radiating clusters of flattened crystals. 476 grams total, 15-32 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
