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LOT 2917
Mixed Cut and Polished Agate Half Geode Group [10]
1 7/8 - 4 1/4 in. (1.66 kg total, 4.7-10.7 cm).
Comprising ten cut geode halves showing crystalline centres. [20, 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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Polished Goniatite and Orthoceras Fossil Dish
Devonian Period, circa 400 million years B.P.Sold for (Inc. bp): £59
A circular dish carved from fossiliferous stone and with an applied Goniatite sp. 948 grams, 22 cm
From Morocco, North Africa. 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. -
Collection of Seventy Three [73] Boxed and Unboxed Amethyst Crystal Geode Display Pieces
Sold for (Inc. bp): £20
Boxed group of light to dark purple amethyst crystal specimens, including some on matrix. 1.95 kg total including box, 16-66 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.