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wholesale jewelry china What are the main uses of red and sapphire?

Опубликовано в от Король
The mining and utilization of red and sapphire has a history of more than 2,000 годы. Their traditional use is to make decorative gems. Например, in the Qing Dynasty of our country, the official top-band dress system stipulated: the official top of the official from the prince to the first grade official uses ruby, and generally each is above 100ct. Однако, some authors in recent publications expressed doubts about this, thinking that even if they had money, it was impossible to buy so many large rubies, so most of them were probably made of large rubies (spinel minerals). The author believes that this speculation is reasonable. In the burial goods of the Empress Dowager Cixi, there are 3 790ct red and sapphires of various sizes, which is credible. Since the 1950s, Stastones (Stastones) have been widely popular in Western countries. Rubies are listed as birthstones in July and sapphires are birthstones in September. As a result, both of them have been made into high-end accessories such as men’s and women’s rings, corsages, and tie clips, and are favored by customers. Red and sapphire are treasures all over, even the scraps and powders left over from the cutting and grinding of jewelry can still be used as high-grade abrasives. The larger ones can be used as needles for record players or recording devices. In modern technology, laser instruments made of ruby ​​crystals can be used to measure the distance between the earth and the moon, creating favorable conditions for mankind to land on the moon. В последние годы, some of the “never-wearing” high-end watches produced in Switzerland have a case made of tungsten-titanium alloy with a hardness exceeding 9 Mohs. The matching surface “jewel glass” is made of artificial colorless with a hardness of 9 Transparent sapphire is processed. How to distinguish sapphires produced in different countries? There are far more sapphires in the world than rubies. The sapphires produced in different countries are clearly divided into two categories according to the color depth: One is the sapphires from Burma, Sri Lanka and Kashmir, Индия, which are bright blue due to their titanium-based color, and contain silk-like rutile inclusions, which can produce six or twelve star lights, all of which are high-quality varieties. Кроме того, Sri Lankan sapphires often have green or yellow so-called “color sapphires”. The other is the sapphires from Australia, Thailand and China. Because they contain more iron and less titanium, the gemstones are dark blue, and Australian products are even jet black, so they generally need to be heated to change the color before processing. Beautiful jewelry.

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