With the increasing living standards in our country, more and more people have pockets in their pockets, and colored gemstones have gradually begun to enter our field of vision. Today, I will talk about my favorite and sapphire, one of the precious treasures. Below is a small series of Chinese jewelry investment network to bring you sapphire how to buy small tips, share the origin and characteristics of sapphire. How to buy sapphire tips Picking tips Gems have a large ribbon, so the ribbon should be placed in the center when cutting, so that the reflected color will be more uniform. The ribbon will affect the price of the sapphire. Sri Lankan sapphire often has ribbons, and the pavilion is thick and full of more ribbons, the color will be thicker and the anti-fire will be enhanced. Of course, the middle is too thick to add its weight and cost, so choose the thickness to be appropriate to achieve the best beauty and economic benefits. Naturally distinctive Natural sapphire crystals often have ribbons, fine needle-like rutile, spinel and other inclusions, and the other characteristic inclusions are fingerprint-like inclusions. The inclusions are marks of gems, and natural gems cannot be without inclusions. However, too many inclusions sometimes affect the beauty of the gemstone, and it will have a great impact on the value. Therefore, the cleanliness of the sapphire is as good as possible. Pretending to identify This is indeed the case. The more common replicas are crystal, topaz, zircon, fluorite, and glass. However, imitations cannot mimic the hardness and density of sapphire. In addition to diamonds, sapphire is the hardest deposit. The hardness of a diamond is 10, the hardness of a sapphire is 9, and the hardness of a crystal is 7. Therefore, sapphire can be used to draw glass, imitation can not, can be regarded as one of the identification methods. Second, the official agency's certification is also a guarantee of sapphire quality. Analysis of the origin and characteristics of sapphire The biggest feature of sapphire is the uneven color, which can be seen in parallel hexagonal cylinders, flat ribbons and growth patterns with different shades. Polycrystalline twin crystal development, more common louvered double crystal grain. The cracking is split along the double crystal plane. In addition to the above characteristics, the sapphire with strong dichroism and different international origins also has different characteristics due to different origins. There are not many international sapphire producing areas, mainly Myanmar, Sri Lanka, Thailand, Australia, China, etc., but in terms of gem quality, Myanmar and Sri Lanka have the best quality. According to different geological origins, they can be divided into two categories: one is sapphire produced in Myanmar, Sri Lanka and Kashmir, India. The other category is sapphire from Australia, Thailand and China. The sapphire of Myanmar and other real estates, due to the coloration of titanium, is bright blue, containing silky rutile and fingerprint-like liquid inclusions. The silky rutile inclusions can produce six or twelve stars, which are excellent gem types. The sapphire produced in Australia, Thailand and China contains more iron and is colored by iron. Therefore, the color of the gemstone is very dark, and the gemstone gemstone is not very good. It usually needs to be heated to handle the problem. The characteristics of the different origin sapphire are briefly described as follows: Indian Kashmir sapphire. The color is the blue of the cornflower, which is the indigo of the microstrip purple. The color is bright and bright. The haze-like inclusion has a milky white reflective effect. Has always been hailed as the best in sapphire. There is no conclusion about the factors that occur in this color perception. It may be caused by the fine particles such as rutile, or it may be caused by the scattering of light by some very fine cracks and accompanying dissolved matter. The color is uneven. A clear blue and nearly colorless ribbon that forms a clear line. However, because the mining area is located at the northwestern end of the Himalayas, it is more than 5,000 meters above sea level. It has been covered by fog for many years and has not been produced in recent years. Myanmar Mogok Sapphire. It is produced in the same mining area as ruby. In addition to the different colors, the other features are exactly the same. Its inclusion body is as follows: silky rutile inclusions, placed in parallel with hexagonal cylinders, inserted at 60 degrees and 120 degrees. If the straight-lined filament-like inclusions are cut, six or four starlights may appear after honing into a curved gemstone; the bubbles in the voids of the fingerprint-like liquid inclusions occupy a small area, about 30% of the solid; For inclusions, corundum, spinel, uranium pyrochlore, apatite, etc. are common. Sri Lankan sapphire. Same as a ruby ​​in a mining area, except for the color, the other features are exactly the same. Its inclusions are as follows: silky inclusions, similar to the characteristics of Burmese sapphire, the difference is that the fibers are thin and long, and there may be six-shot starlight; the liquid inclusions are in the form of amorphous layers or fingerprints; solid package Body, there are zircon, apatite, biotite and so on. The above is how the sapphire shared by the China Jewelry Merchants Network Xiaobian for you to buy a small secret, I hope to help you in need of friends.
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