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![Group of Twenty Nine [29] Large Rock Crystal Quartz Specimens](https://timelineauctions.com/zoom_images/zoomthumb/2/5/255986_900x900.jpg "Group of Twenty Nine [29] Large Rock Crystal Quartz Specimens")
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![Group of Twenty Nine [29] Large Rock Crystal Quartz Specimens](https://timelineauctions.com/upload/images/items/255986.jpg "Group of Twenty Nine [29] Large Rock Crystal Quartz Specimens")
LOT 2417
Group of Twenty Nine [29] Large Rock Crystal Quartz Specimens
1 3/4 - 3 1/2 in. (2.93 kg total, 45-88 mm).
Boxed group of mainly prismatic colourless specimens, some twinned and three specimens with dark dendritic inclusions. [29, No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2417
Group of Twenty Nine [29] Large Rock Crystal Quartz Specimens
Sold for (Inc. bp): £29
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Knightia Multiple Fossil Fish Plate
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £52
An oval plate with four Knightia alta specimens. 161 grams, 13.8 cm
From Wyoming, 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 Uinta, 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. -
Two Large Cut and Polished Slabs of Rare Vintage Blue John Fluorite
Sold for (Inc. bp): £104
Two irregular slabs showing typical purple, blue and white banding. 935 grams total, 25.1-25.6 cm
From the UK. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Polished Fossil Sand Dollar Group
Miocene Period, circa 25 million years B.P.Sold for (Inc. bp): £7
Comprising three domed and polished specimens. 325 grams total, 58-73 mm
From a Lincolnshire, UK, collection.
