Zircon is a silicate mineral, which is the main ore for refining zirconium metal, and contains impurities such as Hf, Th, U and TR. Zircon widely exists in acidic igneous rocks, metamorphic rocks and other sediments.

The chemical properties of zircon are very stable, so gem-grade zircon can also be seen in river gravel. There are many kinds of zircon, and different zircon will have different colors, such as black, white, orange, brown, green or colorless and transparent. Gem-grade zircon is cut like a diamond.

Extended data:

Information about zircon:

1. Zircon is a natural gem with high dispersion and refractive index second only to diamond. Colorless and transparent zircon resembles diamond and is a good substitute for diamond. Commonly used zircon is colorless, reddish brown, reddish brown, green and so on.

2. Among them, blue is of high value, and it has been optimized by heat treatment and discoloration. Many zircon on the market are sold after heat treatment.

3. Zircon is usually heat-treated to improve its quality or change its color or type. Because no other substances were added in the optimization process, it is still considered as a natural gem in jewelry appraisal.

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