Mücevher haberleri

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’' te gönderildi Kingjy tarafından

Golden jade refers to a kind of golden topaz, most of which is the yellow color of naturally produced white topaz (Topaz olarak da bilinir) after heat treatment. Some people call a kind of natural citrine golden jade, which should be called golden crystal correctly.

Brazil produces the world-famous premium wine-colored topaz; Siberian pegmatite in Russia produces large yellow topaz crystals; Sri Lanka and Myanmar produce high-quality topaz in gem placers; in addition, a large number of topaz is produced in the United States, Australia, Pakistan and other countries .

my country’s Xinjiang, Inner Mongolia, Guangdong, Yunnan, Fujian and other provinces (autonomous regions) have a lot of topaz production, but most of them are colorless and transparent products that require color modification.

Since most of the naturally produced topazes are colorless and transparent, they must be artificially changed to make them look like aquamarine-like beautiful and not easy to fade products, and because the price of this changed color topaz is only about 1/5 of that of aquamarine, Öyleyse, it is deeply favored by consumers.

Şu anda, the general method for changing the color of topaz is to change the colorless topaz into a beautiful sky blue by irradiation or heat treatment. The basic principle of these methods is: under the action of high-energy particles, make the topaz crystals cause more lattice defects-vacancies and dissociated atoms, produce color centers, make them color, and heat treatment to remove noise and stabilize Color center.

China has discovered topaz deposits in more than 10 provinces (autonomous regions) in Inner Mongolia, Gansu, Xinjiang, Sichuan, Yunnan, Guangxi, Guangdong, Hunan, Jiangxi, and Fujian. The genetic type of the topaz deposits is dominated by the granite pegmatite type, followed by Gasification-high temperature hydrothermal type, skarn type and placer type. Among them, the more important origins are Erlianhot, Chahar Youyizhong Banner, Jining, and Alxa Left Banner in Inner Mongolia; Altai area in Xinjiang and Taishan (coastal placer) in Guangdong.

 

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