鉴别宝石或者玉器常用仪器及用法介绍（Identification of gems and jade articles and their usage）.doc

鉴别宝石或者玉器常用仪器及用法介绍（Identification of gems and jade articles and their usage） Although it is accurate in most cases, it can also be wrong. In particular, the use of modern science and technology to produce similar natural gem artifacts, the first one or two encounter, it may be fooled. The use of modern crystallography, mineralogy and optical knowledge, some instruments plus, there may be more accurately identify gems, though there may be a little slower, but not easy to make a mistake. Even people who have no experience with gemstones, after learning some of this knowledge, may be able to identify some common gems more accurately. To identify gems, people use many of the instruments from simple to complex. However, the requirements of identifying gemstones are different from those of mineralogy. The requirements of mineral identification are very high, and the data they try to make are as accurate as possible. Therefore, it is often necessary to use highly expensive advanced instruments and equipment. Gemstone identification is not, and its requirements can be summarized as follows: the equipment is relatively simple, low price, generally only qualitative, it must be convenient and fast, require not to destroy the sample, low cost requirements. The following are brief descriptions of the instruments, equipment and their uses for the identification of gemstones: 1. magnifier A magnifying glass is the most widely used tool for identifying gems. Because the human eye ability is limited, the smallest and ordinary people can see objects about 0.10.2mm. While the gem internal lines, cracks and inclusions, often small invisible, then you must use a magnifying glass to. Recognition of the gem with a magnifying glass, multiples of not less than 8-10 times, the best preparation for a 20 fold magnification. The correct way to use a magnifying glass is to put the magnifying glass as close to the eye as possible, then clip it in with tweezers and slowly reach the magnifying glass