Second, agate identification. Methods: Observing with naked eyes, the color of real agate is bright and bright, and the color of fake agate is poor, and the contrast between them is obvious.
Third, ruby identification. Methods: Under the light, natural ruby has a strong "dichroism", and there are two shades of red and orange red from different directions. If there is only one color, it may be fake.
Fourth, crystal identification. Methods: Rock crystals are polarized, and double crystals can be seen, such as crystal balls. Looking from top to bottom, there is a double image phenomenon.
Verb (abbreviation of verb) Identification of pearls. Method: Look at the pearl surface. The poor roundness of natural pearls is due to the random growth environment, and foreign bodies rarely roll in the nucleus.
Extended data:
Jewelry is divided into natural jewelry, jade and artificial products.
Natural gems: diamond, ruby, sapphire, golden green cat's eye, beryl, emerald, tourmaline, opal, chalcedony, Hebi, etc. 17 kinds.
Natural jade: Huang Longyu, agate, jasper, Lingbi jade, Hetian jade, blue and white jade, xiuyan jade, Nanyang jade, chalcedony, serpentine, similar jade, jadeite, lantian jade, malachite, turquoise, Dongling jade, white marble, Junggar jade, luminous jade, malachite, cryolite, lapis lazuli, jade and ice flower jade.
Natural colored stones: Shoushan stone, Tian Huangshi, Qingtian stone, bloodstone, Wuhua stone, Changbai stone, Duanshi, Shitao, Songhua stone, Yuhua stone, Balin stone, Helan stone, Chrysanthemum stone, Ziyun stone, Qingshan stone, Yanzishi Fossil fossil, Mangshi, Hongsi stone, Taihu stone, feldspar stone and serpentine stone.
Natural organic gems: amber, pearl, coral, ivory, coal jade, etc.
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