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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]
Both diamonds and white topaz may phosphoresce if heated below red heat. The phosphorescent quality of diamonds when heated by sunlight is usually believed to have been first revealed by Albertus Magnus (c. 1193–1280) and it was apparently rediscovered by Robert Boyle in 1663, who also found that some diamonds will luminesce under pressure.
Chalmers Topaz, a 5,899.5-carat (1.17990 kg) cut topaz. Tsavorite. Lion of Merelani, a square cushion cut tsavorite that weighs 116.76 carats and has 177 facets.
On one side of the ring, there is a five-point star borrowed from the seal of the state of Texas and is circled by oak leaves, symbolizing strength. On the other side of the ring are a cannon, a saber, and a rifle, which symbolize Aggies' preparedness and valor in defending their land.
White ring may refer to: a ring with a white gemstone; White Ring arena, sports arena in Japan; White power ring ("White Ring") of the White Lantern Corps; Nenya, the White Ring, one of the Three Rings of Elven Kings under the Sky; White Ring, a German male Catholic student fraternity; White Ring (band) The White Ring (ski circuit), ski circuit ...
The earliest known technique of attaching stones to jewelry was bezel setting. A bezel is a strip of metal bent into the shape and size of the stone and then soldered to the piece of jewelry. The stone is then inserted into the bezel, and the metal edge of the bezel pressed over the edge of the stone, holding it in place.