Synthetic Organization : Al2SiO4(F,OH)3 Aluminim Silicate Fluoride Hydroxide
Hardness : 8.0
Particular Gravity (Thickness) : 3.49 – 3.57 (g/cm3)
Refractive File : 1.606 – 1.644 Biaxial ( + )
Topaz is a bounteous and prevalent jewel accessible in a wide assortment of hues. Normal hues incorporate dry, pale to medium blue, pale greenish, yellow, brilliant dark colored, beige, champagne, orange, pale to profound pink and, once in a while, red. Numerous different hues, including the mainstream dark blue, have been made by warming and illuminating Topaz. These hues have been given business names, for example, London Blue, Swiss Blue and Sky Blue. Treated Topaz is likewise accessible in shades of green from Greenish blue Green to Emerald Green. Another Topaz treatment is to put a thin titanium covering on the pavillion of a faceted pearl bringing about a rainbow of hues. This diamond passes by the business name of Spiritualist Topaz.
Large Topaz precious stones have been discovered measuring many pounds. These precious stones are regularly extremely gemmy and have created faceted jewels of up to 20,000 carats! Conceivably the biggest faceted gemstone on the planet is a light blue Topaz (treated) from Brazil weighing 21,327 carats cut in an emerald shape called the Brazilian Princess. A considerable lot of alternate shades of characteristic Topaz (yellow, orange, pink, red) are found as significantly littler precious stones. Characteristic orange Topaz is oftern called “Supreme” or “Valuable” Topaz.
There are numerous areas worldwide where Topaz can be found. A couple of areas for the finest examples incorporate close Mursinka, Ural Mountains, Russia; the Skardu and Gilgit regions, Pakistan; the Mogok locale, Myanmar (Burma); Ouro Preto, Minas Gerais, Brazil; Tepetate, San Luis Potosi, Mexico; and in the USA at Ramona, San Diego Region, California; Demons Head, Douglas Province, Colorado; the Thomas Run, Juab District, Utah, USA.