First, the jade pattern (stone pattern) looks linear or linear, and the color is different from that of the surrounding materials, but the lines are smooth and have no gaps.

Jade grain (stone grain) is actually formed in the process of the formation and growth of jade, and it is caused by the later geological action, which heals the original broken jade. It has little effect on the durability and firmness of jade, but only on the appearance of jade pieces.

2. Cracks and fissures are caused by geological processes after the formation of jade, or by external forces such as firecrackers, knocking, impact or vibration during the mining, transportation, processing or storage of jade. These cracks often have obvious cracks and cracks, which can be felt even by touching them with your hands or scraping them gently with your nails.

Jade with many obvious cracks has low economic value. Other cracks are visible and untouchable, and the color of cracks is generally black or yellowish brown. Although the bracelet with many cracks will not break in a short time, it is in danger of being easily damaged.

Extended data

Treatment of cracks in jade bracelet;

According to the location and size of cracks, the treatment methods are different.

First, new jade bracelets generally don't have big cracks. Because the jade used to make bracelets is of high quality, cracks will be avoided or directly removed during the carving process.

For smaller cracks that do not affect the main cracks, they are skillfully used, cut into lines or form a sense of hierarchy. For some hidden locks, they can generally be hidden by drawing patterns. In a word, the jade finally presented to collectors is perfect.

2. For cracks or fractures caused by knocking, impact or vibration, generally, the broken lines can be wrapped and decorated with patterns such as gold, so that no cracks can be seen from the appearance, thus maintaining a perfect appearance.

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