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LOT 0443
Polished Amethyst Crystal Geode Display with Calcite
CRETACEOUS PERIOD, CIRCA 120-140 MILLION YEARS B.P.
10 5/8 x 7 7/8 x 4 in. (5.68 kg, 27 x 20 x 10 cm).
The outer layer of green celadonite beautifully polished, the interior with dark purple prismatic amethyst crystals, and at the top, an aggregate of white rhombohedral calcite crystals; mounted on a custom-made display stand.
ProvenanceFrom Artigas, Uruguay.
Property of a London lady.
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AUCTIONS:
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LOT 0443
Polished Amethyst Crystal Geode Display with Calcite
Estimate £1,200 - 1,700€1,390 - 1,970 (for guidance only)$1,620 - 2,300 (for guidance only)
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Massive Cave Stalagmite Section
Sold for (Inc. bp): £7
A colossal cut section of cream-coloured stalagmite showing natural ripples. 66.7 kg, 90 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 accumulation of material deposited from ceiling drippings. They are typically formed by the deposition of calcium carbonate and other minerals, which is 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 Orange Coral Beads
Sold for (Inc. bp): £46
Comprising mainly cylindrical and oblate beads. 18.3 grams total, 4-8 mm
Private collection, London, UK. -
Polished Fossil Goniatite Group
Devonian Period, circa 400 million years B.P.Sold for (Inc. bp): £20
A pair of polished goniatites showing some internal structure. 138 grams total, 62-65 mm
Found Morocco, North Africa. Property of an Essex gallery.
