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![Three [3] Madagascan Cut and Polished Fossil Tree Sections](https://timelineauctions.com/zoom_images/zoomthumb/2/5/251030_900x900.jpg "Three [3] Madagascan Cut and Polished Fossil Tree Sections")
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![Three [3] Madagascan Cut and Polished Fossil Tree Sections](https://timelineauctions.com/upload/images/items/251030.jpg "Three [3] Madagascan Cut and Polished Fossil Tree Sections")
LOT 2752
Three [3] Madagascan Cut and Polished Fossil Tree Sections
4 1/2 - 7 3/8 in. (1.61 kg total, 11.5-18.7 cm).
Comprising three good-sized agatised slices, showing the internal structure of the wood. [3, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2752
Three [3] Madagascan Cut and Polished Fossil Tree Sections
Sold for (Inc. bp): £52
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Bismuth Crystal Specimen
Sold for (Inc. bp): £26
Cluster of hopper crystals exhibiting a stairstep crystal structure and iridescent colours. 20.5 grams, 45.4 mm
From a Cambridgeshire, UK, collection. -
Massive Cave Stalagmite Section
Sold for (Inc. bp): £20
A colossal cut section of cream-coloured stalagmite showing natural ripples. 76 kg, 105 cm
Previously from a Hong Kong collection. Ex property of a London, UK, gentleman, 1990s.
A stalagmite is an upward-growing mound of mineral deposits growing on the floor of a cave due to the accumulation of material deposited from ceiling drippings. They are typically formed by the deposition of calcium carbonate and other minerals, which are precipitated from mineralised water solutions. Limestone is the chief form of calcium carbonate rock, which is dissolved by water that contains carbon dioxide, forming a calcium bicarbonate solution in underground caverns. -
Fossil Isle of Skye Ammonites
Middle Jurassic, Aalenian Stage, Murchisonae Zone, circa 174-170 million years B.P.Sold for (Inc. bp): £39
An irregular matrix with three overlapping ammonite specimens, likely Ludwigia or Pseudographoceras. 265 grams, 99.6 mm
From a Cambridgeshire, UK, collection.
