Gu Yu has “three bogeys†and “four fearsâ€. Liu Datong said in the “Jade Jade†that the so-called “three bogey†refers to ancient jade “bogey oilâ€, “embarrassment†and “bogey of dirty gasâ€. The so-called "four fears" refers to the ancient jade "fear of ice," "fear of fire," "fear of ginger water," and "fear of disappointment."
1. Avoid oil: ancient jade should avoid contact with greasy, because the oil will block the micro-fine pores of jade, so that the gray soil in the jade can not withdraw, the jade will not shine, revealing the so-called "clear light."
2. Taboo: The chemical components contained in helium or sputum, such as halogen salts, etc., have a certain amount of corrosion to the jade, which results in damage to the jade, so the ancient jade must avoid contact with the stolen material.
3. Avoid filth: The reason that ancient jade avoids filthiness is similar to that of bogey oil, that is, contamination will make "soil gate" obstructed, and the lime soil in jade can not be withdrawn or even be oppressed by it. Therefore, wash your hands before playing jade.
4. Fear of Ice: If the ancient jade is often near ice, or is frozen, the color is not live, there is no moist, that is the "death", and even jade may produce cracks and not be salvageable.
5. Fear of fire: if the ancient jade is often close to the fire or heat source, it may make "color paste" fade, the color paste is mainly refers to the surface gloss and transparency of jade. Ancient jade is heated by heat, especially at high temperatures, which can lead to cracks, jade damage, and loss of luster and transparency.
6. Fear of ginger water: ancient jade and ginger water contact, often make the existing dark color dark. Do not use ginger water to remove the earthy odor or odor of the unearthed jade. If it is immersed too long, it will cause the jade wares to become numb. Even if you continue to "play", it is difficult to remedy.
7. Fear of fear of falling: The so-called "fear of frightened" means that when the wearer is frightened or inadvertently dropped the jade on the ground or collided with a hard object, the weight will be crushed and broken, even if it is not visible, It does not mean that it is intact. Because of the collision, the internal structure will always be affected. Even the tiny cracks that are invisible to the naked eye are hidden dangers of jade. Therefore, jade play pays too much attention to calmness and calmness, but it is also a matter of self-cultivation.