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This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.
Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2.It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]
The topaz in the Field Museum (2009) The Chalmer's Topaz is a topaz gem weighing 5,899.5- carats located in Chicago, Illinois ' Grainger Hall of Gems, in the Field Museum of Natural History . It was named for former Field Museum trustee William J. Chalmers and his wife Joan Chalmers, who established a fund used to purchase gemstones for the ...
In October 2014, Sotheby's Hong Kong achieved consecutive per-carat price records for Kashmir sapphires – first with the 12.00 carat Cartier sapphire ring at US$193,975 per carat, then with a 17.16 carat sapphire at US$236,404, and again in June 2015 when the per-carat auction record was set at US$240,205. [39]
Red beryl, a rare mineral found at Topaz Mountain, occurs as small crystals, often attached to other mineral crystals. It is estimated that one red beryl crystal is found for every 150,000 diamonds. [5] Prices for top quality natural red beryl can be as high as $10,000 per carat for faceted stones. [6] The ground around Topaz Mountain
Another technique first applied to quartz and topaz has also been adapted to cubic zirconia: An iridescent effect created by vacuum-sputtering onto finished stones an extremely thin layer of a precious metal (typically gold), or certain metal oxides, metal nitrides, or other coatings. [14] This material is marketed as "mystic" by many dealers.
Topaz, a cryptonym for Rainer Rupp (b. 1945), spy for East Germany who worked at NATO headquarters in Brussels William Topaz McGonagall (1825-1902), a Scottish poet. Topaz Winters (b. 1999) Pen name of poet Priyanka Aiyer
The pink, cushion-cut, 34.65-carat Princie Diamond used to be part of the Jewels of the Nizams of Hyderabad; it was auctioned in 2013 by Christie's and sold for US$ 39.3 million, which is the highest-recorded auction price for a Golconda diamond and a world record for US$ 1.1 million per carat.
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