How many kinds of agate are there?

Agate can be divided into red agate, purple agate, green agate, blue agate and black agate.

1, red agate, which is what the ancients called red jade. Red agate can be divided into east red agate and west red agate. East red agate refers to the red agate formed by natural iron-containing agate after heating treatment, also known as "burning red agate". West red agate refers to natural red agate, including dark red agate and bright red agate. Agate unearthed in ancient China belongs to West Red Agate.

2, amethyst is mostly a single purple, high-quality color is very similar to amethyst, shiny and shiny. Purple agate is rare in nature, and it is also dyed.

3. Green agate is rare in nature. At present, almost all the green agates in the Chinese jewelry market are artificially colored, and the green color is relatively strong, and some colors are like jadeite, but experienced people can easily distinguish them from jadeite.

4. Blue agate refers to agate with blue or blue and white. This is an agate with a very beautiful color. Dark blue is of high quality. Light colors are common. Blue and white flowers are also beautiful. When they have pinstripe structure, they belong to the variety of silk-wrapped agate.

Black agate is rare in nature. The black agate in Chinese jewelry market, like the green agate, is artificially colored, and the color is thick black, so it is easy to mix with other jet stones.

Extended data

People generally judge the quality and economic value of agate by naked eye identification. Although modern technology is developed and there are many jade identification instruments, it is inconvenient to use these instruments in the transaction process and can't solve the problem. The reason is very simple, and it will be limited by the environment. If we judge the quality and economic value of agate, the instrument will be useless.

It is impossible to carry out complex instrument operation at the trading site, so naked eye identification is always an extremely important method. There are many kinds of agates, known as "1000 kinds of agates and 10000 kinds of jade", so there are many identification methods. Usually, the grading standards are stripes, colors, transparency, cracks, impurities, sand cores and block weight. Except water bile agate, which is the most precious, it is generally best to match harmonious and pretty raw materials.

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