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![Mixed Large Mineral and Crystal Specimen Group [4]](https://timelineauctions.com/zoom_images/zoomthumb/2/2/228134_900x900.jpg "Mixed Large Mineral and Crystal Specimen Group [4]")
![Mixed Large Mineral and Crystal Specimen Group [4]](https://timelineauctions.com/zoom_images/zoommap/2/2/228134_200x200.jpg "Mixed Large Mineral and Crystal Specimen Group [4]")
![Mixed Large Mineral and Crystal Specimen Group [4]](https://timelineauctions.com/upload/images/items/228134.jpg "Mixed Large Mineral and Crystal Specimen Group [4]")
LOT 2512
Mixed Large Mineral and Crystal Specimen Group [4]
4 3/4 - 8 in. (2.89 kg total, 12.2-20.5 cm).
Comprising: a large section of clear prismatic quartz crystal; yellow calcite; a geode slice with crystal lined cavity; cut spherical geode half with banding and small crystal formation. [4, 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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Large Purple Amethyst Crystal Geode Section
Sold for (Inc. bp): £7
A roughly triangular section with small light purple amethyst crystals. 1 kg, 24 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Knightia Fossil Fish in Matrix Group
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £33
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. -
Polished Rose Quartz Crystal Group
Sold for (Inc. bp): £7
Comprising thirty-one polished pebbles displaying vibrant pink colour. 943 grams total, 29-41 mm
Ex property of a UK gallery, early 2000s.
