Topaz is mainly distributed in Brazil, Mexico, Saxony, Scotland, Japan, the Ula Mountains and other places. Topaz is purely transparent, but is often opaque due to impurities. Typical topaz is wine or light yellow. But there may be white, gray, blue, and green. The colorless topaz may be mistaken for diamonds when it is well cut. Colored topaz may be less stable or faded by sunlight. At present, the jewelry industry is studying the use of physical vapor deposition (Physical Vapor Deposition) to form a titanium dioxide film on topaz to produce iridescent topaz.
Counting the world's more expensive topaz
The higher value topaz is red and Sydney, followed by brown. The yellow topaz is similar in appearance to the cheap yellow crystal, so the price is not high.
Topaz is produced all over the world. The important gem-quality topaz is produced in Minas Gerais, Brazil. The topaz here is yellow, deep yellow, pink, blue and colorless.
How much is the world's top topaz?
In the seventeenth century, the Braganza diamond (1640 carats) in the crown of the Portuguese king was once considered a larger diamond and has now been confirmed to be a colorless topaz.
Brazil's Minas Gerais pegmatite near Rodriguez Silva has produced 300 kilograms of transparent topaz, the world's largest, now in the Museum of Natural History in New York.
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