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Description of gems and jade traceability standards
On the basis of becoming the local standard of Shanghai, the gems and jade traceability system standard is becoming a national standard for gems and jade traceability system services in Chinese Mainland.
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Ruby
Ruby refers to corundum with a red color, which is a type of corundum.
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Sapphire
Sapphire is a general term for corundum gems with different colors except rubies.
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Emerald
Emerald is called Emerald Hope, one of the top four gemstones recognized by the international jewelry industry.
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Tourmaline
Tourmaline is the technical name of tourmaline, which is a kind of tourmaline with jewelry grade.
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Jade
Jade is a fibrous aggregate composed of pyroxene minerals, mainly jadeite minerals.
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Nephrite
Nephrite refers to silicate minerals that have gem value from certain amphibole (such as tremolite, actinolite and other series of minerals).
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Pearl
Pearl is an ancient organic gemstone, mainly produced in shells and mother-of-pearl mollusks.
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Amber
Amber is a transparent bio-fossil, and it is the resin fossil of coniferous, rhizome, araucaria, and other plants.
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