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![Natural History - Mixed Cut and Polished Agate Slice Collection [13]](https://timelineauctions.com/zoom_images/zoomthumb/2/0/208009_900x900.jpg "Natural History - Mixed Cut and Polished Agate Slice Collection [13]")
![Natural History - Mixed Cut and Polished Agate Slice Collection [13]](https://timelineauctions.com/zoom_images/zoommap/2/0/208009_200x200.jpg "Natural History - Mixed Cut and Polished Agate Slice Collection [13]")
![Natural History - Mixed Cut and Polished Agate Slice Collection [13]](https://timelineauctions.com/upload/images/items/208009.jpg "Natural History - Mixed Cut and Polished Agate Slice Collection [13]")
LOT 1903
Natural History - Mixed Cut and Polished Agate Slice Collection [13]
3 3/8 - 5 3/4 in. (810 grams total, 8.5-14.7 cm).
With brown, white, orange, grey and blue banding; one with enhanced colour. [13, No Reserve]
ProvenanceFrom Brazil.
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 1903
Natural History - Mixed Cut and Polished Agate Slice Collection [13]
Sold for (Inc. bp): £20
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Natural History - Historic Mixed Tsumeb Mineral Collection
Sold for (Inc. bp): £7
Comprising: anhydrate drilled core from Bahrain; an iridescent blue bornite; a rectangular cut wulfenite specimen; drilled calcite core; a polished red jasper slab found near Dunnotar Castle beach, Scotland in 1986; azurite; native copper; iridescent green bornite; a brown mica specimen. 1.97 kg total, 40-94 mm
Collected in person from 1966-1986. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life. -
Natural History - British Brasilia Fossil Ammonite
Middle Jurassic Period, circa 174.1-163.5 million years B.P.Sold for (Inc. bp): £13
Fossil ammonite on an irregular matrix. 1.02 kg, 15 cm
From Dorset, UK. From a Norfolk, UK, collection. -
Natural History - Fossil Keichousaurus Marine Reptile Skeleton
Triassic Period, circa 250 million years B.P.Sold for (Inc. bp): £845
Complete Keichousaurus hui skeleton on a rectangular matrix. 2.8 kg, 35.5 cm
From Xingyi, Guizhou, China. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection.
Keichousaurus was a late Triassic marine reptile, and a member of the Pleurosaur family, and went extinct 250 million years ago during the Triassic-Jurassic extinction event. They were specialised fish eaters, and were highly unusual amongst marine reptiles in that they gave birth to live young rather than laying eggs.
