Why is the price difference of agate so big? I feel that dozens and hundreds of them are also very beautiful. I hope that someone who knows will say that Baidu is not needed. I already passed it and r

Why is the price difference of agate so big? I feel that dozens and hundreds of them are also very beautiful. I hope that someone who knows will say that Baidu is not needed. I already passed it and returned it. Agate belongs to seasonal jade, with structure of aphanitic and hardness of 7Hm. Transparency: slightly transparent; Gloss: glass-grease-silk luster.

Agate is classified by color, band, impurity or inclusion.

According to color, it is divided into white agate, red agate, green agate and black agate.

By strip: agate and silk-wrapped agate;

According to impurities or inclusions, it can be divided into moss agate, agate, water bile agate and grape agate.

Agate belongs to seasonal jade, and its quality evaluation is generally measured from the following aspects:

1, color: monochrome should be pure, gorgeous and uniform; Multicolor should be pure, gorgeous and colorful;

2. Texture: the structure is even and delicate, and the combination is close. The fewer cracks and impurities, the better;

3. Transparency: it must be transparent, and the higher the transparency, the better;

4. Quality: The larger the block size, the higher the value;

5. Special patterns and inclusions: a certain pattern is formed, which is beautiful and of high artistic value; Among agate varieties, water bile agate, the bigger the "water gall", the more "water" and the more transparent it is, the higher its value will be.

6. Processing technology: ingenious conception, gorgeous colors and fine processing will greatly enhance the value of agate.

7. Ornamental agate-like rough stone: The more similar the shape is to the corresponding species in nature, the higher the value.

Agate is a low-grade gem, mainly because it is not as scarce as a high-grade gem. There are more than 20 agate mines in China alone, so this is the main reason for the low value of agate. Moreover, the saying that "there are thousands of agates and ten thousand kinds of jade" illustrates the characteristics of various agates. Therefore, even if the texture is good, the price of agate with general appearance will not be too high, and those agates with good texture and good appearance are all good.

For reference.