Four identification points of emerald
Emerald has the reputation of being the king of gems. It is famous for its unique color and charm. Its precious value makes it a sought-after object for many senior collectors. Such precious gems, there are many fakes on the market, generally used. Pretending to be emeralds are zircon, green olivine, green garnet, etc. How do we identify emeralds in the face of so many counterfeits?
First, the refractive index
Emeralds have a refractive index between 1.57 and 1.59, while counterfeit products generally have a refractive index lower than 1.57 and higher than 1.59, but the true and false can be distinguished by detecting the refractive index.
Second, the proportion
Unlike other jewels and jade, emeralds are lighter in weight, and many gemstones are heavier than emeralds, and can be distinguished by hand weight.
Third, the color change
Natural emeralds are dark red under ultraviolet light, but some counterfeits emit strong red fluorescence; if viewed with a Chelsea filter, the emeralds will be red and some natural stones will be green.
Fourth, the inclusion body
Most of the natural emerald gemstones have some inclusions such as enamel and impurities, and there are needle-like, columnar, granular and other crystalline substances. There is no such thing as a synthetic emerald, and the other gemstones are not the same inside. We can use a magnifying glass or microscope to observe the internal structure of the emerald.
However, the identification of emeralds will also have some unexpected situations, which can not be identified by instruments. Therefore, when looking at emeralds, you should also remember to read the certificate, and the certificate will provide helpful information.
Women'S Slim Trousers,Low Waist Flare Pants,Irregular Leg Hem Trousers,Slim Fit Trousers
SHAOXING ZHENNIU TRADING CO.,LTD , https://www.zhenniuclothes.com