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![Natural History - Cut and Polished Malachite Specimen Group [20]](https://timelineauctions.com/zoom_images/zoomthumb/2/1/211467_900x900.jpg "Natural History - Cut and Polished Malachite Specimen Group [20]")
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![Natural History - Cut and Polished Malachite Specimen Group [20]](https://timelineauctions.com/upload/images/items/211467.jpg "Natural History - Cut and Polished Malachite Specimen Group [20]")
LOT 2249
Natural History - Cut and Polished Malachite Specimen Group [20]
7/8 - 1 5/8 in. (308 grams total, 22-43 mm).
Each with one polished face to display the internal contrasting banding. [20, No Reserve]
ProvenanceFrom the People's Democratic Republic of Congo.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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:
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LOT 2249
Natural History - Cut and Polished Malachite Specimen Group [20]
Sold for (Inc. bp): £46
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Natural History - Fossil Fly and Insect Group
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £13
Comprising three matrices with fossil flies together with a fossil crane fly. 82 grams total, 37- 82 mm
From Wyoming (Green River Formation), Uintah County, Utah, USA. Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill. -
Natural History - Knightia Fossil Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £33
Two negative impressions of Knightia alta specimens on a rectangular matrix. 312 grams, 13 cm
From Wyoming (Green River Formation), USA. Acquired during 1980s. From the Pradi Collection, Boston, USA.
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 - Natural Australian Opal Specimen
Sold for (Inc. bp): £72
Displaying a good play of colour on milky-white background, tag with handwritten information: 'JOAN'S OPAL / PURCHASED / SYDNEY 1983 / IT IS A V. GOOD / ANDDAMOOKA CRYSTAL'. 0.75 grams, 11.99 mm
Purchased Sydney, Australia, in 1983. From a Norfolk, UK, collection. Property of an East Sussex, UK, gentleman. Accompanied by a pouch and information tag.
