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china anchor bracelet Synthesis and purchase of spinel

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There are artificial spinel products in the gem market. The traditional synthesis method is synthesized by the fire melting method. Yaqin o'tkan yillarda, the spinel synthesized by the flux method has also entered the market. The appearance and internal appearance of the artificial spinel synthesized by the flux method have been introduced. , The content is closer to natural spinel, which is easy to cause confusion in identification.

The manufacture of artificial spinel was first made in the middle of the 19th century. It was originally intended to make sapphire. In order to make the crystal grow smoothly, some magnesium oxide had to be added, but spinel was obtained as a result. O'shandan beri, by adding different trace elements to make spinels of different colors, as artificial substitutes for other gems, Masalan: sky blue artificial spinel is usually used as a substitute for aquamarine, pink is Can act as tourmaline and so on.

The most famous spinel in history is the British Timur Ruby (Timur Ruby). Bu 352.2 carat red spinel is still displayed in Buckingham Palace; it is said that Timur Ruby was in India in 1398 The trophies obtained by Madrid changed hands several times and were finally presented to Queen Victoria of England. O'shandan beri, it has become one of the royal treasures. This unique gem is engraved with the names of the six holders who once owned it.

Asosan, the refractive index of artificial spinel is slightly higher than the natural one, about 1.728, but natural spinel may also have this refractive index, so other tests are needed to distinguish between natural and man-made; the specific gravity of synthetic spinel 3.64, slightly higher than natural, showing a strong single refraction effect under the polarizer, va hokazo. can provide a basis for identification. Ammo, the main difference is still microscopic observation. The difference between natural and man-made inclusions is the key to identification. Bunga qo'chimcha, the sky blue synthetic spinel contains cobalt (Co) and appears red under the color filter, which is also an effective identification method.

 

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