Many people like jadeite very much, but they can't identify jadeite. Therefore, when recruiting people to identify and evaluate jadeite, people often ask whether jadeite is defective? But in fact, the jade of heaven and man will have defects. So what are the defects of natural jadeite? This article brings you some defects of natural jadeite. Let's have a look.
The defect of jadeite refers to the factors that grow inside or on the surface of jadeite and cause great or small damage to the texture and appearance of jadeite. In other words, perfection plays a decisive role in its value. As long as we look after it with a tenfold magnifying glass, there is no hiding the defect. If you want to observe whether there are dark cracks or impurities in the jadeite, you can also place a pen flashlight behind it, which can be seen at a glance when it is on.
1. Crack
The raw stone is dropped during handling, the sheet material is impacted during processing, and the finished product is accidentally dropped to the ground. Cracks are generally caused by the day after tomorrow (secondary). Most of the external cracks are transverse lines. They are visible to the naked eye. There is no filler in the middle. Nails can be scratched, some are very serious and some are very slight.
2. Cleft lock
The fracture of jadeite jade occurred due to the action of external stress in the formation of long-term complex geological environment. Cleft locks are generally caused by congenital (primary), and most of the internal cleft longitudinal lines are visible to the naked eye. There are colored (impurity) fillers in the middle. Nails are generally not scratched, and some are serious or slight.
3. Miscellaneous tendon
Existing in the ground, it feels like a mottled substance in the shape of tree roots and tendons, which is the impurity mixed in the formation of jadeite in the long-term complex geological environment. Miscellaneous tendons are congenital (primary), visible to the naked eye, not cracks, serious or slight.
4. Stone grain
The local dislocation of jadeite due to the extrusion of external force in the long-term complex geological environment is characterized by the uneven structure of adjacent parts in the dislocation of jadeite, which looks like cracks. Stone grain is congenital (primary) and visible to the naked eye. It is not a crack. There is generally no colored (impurity) filler in the middle. There are obvious and secret. The common ice grain is one of the stone grain.
5. Stone flower
Some Jadeites that are slightly less transparent than the ground are in a mass. Those that are dry and massive are called 'stone brain', those that are scattered and broken are called 'reed flowers', those that look like cotton wadding are called' Cotton ', and those that are fine and drifting are called' snowflakes'.
6. Variegated
Jadeite has more or less colors, ranging from large to small. Small area or dot like green, red and yellow, their existence can make the whole jadeite jewelry more beautiful and characteristic, which is called Qiao color; Small area or dot like black, brown, gray, etc. their existence can make the whole jadeite jewelry more ugly and low-grade, which is called variegated; Dot like black, brown, gray, etc. are also called dirty spots.
If the degree of miscellaneous bars, stone patterns, stone flowers, mottled colors, dirty spots, etc. is deep enough to affect the beauty of the original, they are considered defects. If the degree is shallow and has no obvious impact on the beauty of the original, they are not considered defects.