Agate, also known as agate, Kate Ma and agate, is a kind of chalcedony mineral. It is usually a banded rock block mixed with opal and aphanitic. Its hardness is 6.5-7 degrees, its specific gravity is 2.65, and its color is quite layered. Translucent or opaque. The primitive form of tripartite crystal system. It is often dense and massive, forming various structures, such as breast, grape and tuberculosis. The common structure is concentric circles.

Chalcedony has different colors, usually green, red, yellow, brown, white and so on. According to patterns and impurities, it can be divided into onyx, silk-wrapped agate, moss agate, castle agate and so on. Often used as a plaything, ornamental, ornament or decoration. Agate balls can often be seen in ancient funerary objects.

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The method of identifying the authenticity of agate jewelry;

1. Transparency: The transparency of real agate is not as good as that of synthetic agate, which is a bit messy. Some can see natural waterlines or "clouds", while synthetic agate has good transparency and is as transparent as a glass ball.

2. Weight: Real agate jewelry is heavier than synthetic agate jewelry.

3, temperature: real agate is warm in winter and cool in summer, while artificial agate changes with the external temperature, when it is hot, it becomes hot, and when it is cold, it becomes cold.

The most striking sign that natural agate stone is different from fake agate stone is that its cross section has concentric layered structure. With this sign, the whole agate stone is easier to identify, and the cut finished product is easy to admit mistakes because there is no neat and obvious pattern.

But generally speaking, natural agate stone feels cool, its surface looks like a layer of wax, and it has the luster of wax, translucency and hardness of Mohs 7, so it can't be carved with a knife, because the crystals formed in the molten state are mostly spherical;

So it is particularly dense; After polishing, the surface is more delicate. After a dozen times of intense friction on the hard miscellaneous wood board, the agate stone is not hot, but the wood board is hot. Colors are often mixed together to form beautiful patterns, layers, tapestries and other colorful patterns.

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