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LOT 2183
Natural History - Polished Douvilleiceras Fossil Ammonite Group
MIDDLE CRETACEOUS PERIOD, CIRCA 150 MILLION YEARS B.P.
1 5/8 - 2 in. (160 grams total, 42-52 mm).
Comprising three Douvilleiceras sp. specimens (sometimes known as a Goat Horn), polished to reveal rich calcites and suture patterns. [3, No Reserve]
ProvenanceFrom the North-East Coast of Madagascar in the jungles of Mahajanga.
Acquired 1950s-1960s.
From an old Bristol, UK, palaeontological collection.
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AUCTIONS:
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LOT 2183
Natural History - Polished Douvilleiceras Fossil Ammonite Group
Sold for (Inc. bp): £33
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Natural History - Historic Iridescent Purple Bornite Mineral Specimen
Sold for (Inc. bp): £7
the large pebble with iridescent dark purple surfaces with small areas of blue and brown. 189 grams, 54 mm
Collected in person from various parts of the world mainly between 1957-1966. 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 - Large Amethyst Crystal Lump Group [34]](https://timelineauctions.com/upload/images/items/small/208001-s.jpg)
Natural History - Large Amethyst Crystal Lump Group [34]
Sold for (Inc. bp): £59
Comprising large irregular chunks in light to dark purple colour. 2.26 kg total, 42-93 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - White Pecopteris Fern Specimen Group
Devonian Period, circa 417-354 million years B.P.Sold for (Inc. bp): £13
Five Pecopteris sp. fern specimens on irregular matrices 3.04 kg total, 15-25 cm
From St. Clair, Pennsylvania, USA. Acquired during the 1980s. From the Pradi Collection, Boston, USA.
These fern fossils are very common from coal mining areas around the world. However, it is the unique state of preservation of the white on the black shale that gives the St. Clair ferns their beauty and rarity. This combination is not found anywhere else in the world.
