How to distinguish
the quality grade of jadeJade
A cargo: is the property without any chemical treatment of natural jade,
composition, structure, color, transparency, maintain a natural state, through
mechanical processing only change the shape of jade. Color
quality, enduring value of a collection.
Jade B goods: low-grade jade, acid treatment rinse the removal of impurities. Epoxy resin and then consolidation, the structure has been destroyed after a certain period of time, the color quality will deteriorate.
Jade C goods: Jade by manually adding dye processing. The color concentrated in fissures, customers in the transmission light and dark environment, easily observed color was filamentous distribution. After a certain period of time, the color quality will be worse.
B jade naked eye:
(1) weaker than the luster of natural jade, to observe the surface under the light, like the surface of the candle or pork.
(2) surface with irregular-shaped crack development, with a magnifying glass from the tilt direction can be observed.
(3) color and texture contrast, observe the color messy floating.
(4) the structure changed dramatically, with a magnifying glass to observe the internal particles, loose fragmented sense.
(5) when struck, the sound muffled while the turbidity (This method is used for bracelets), wire bracelet dangling jade or metal percussion.
B goods is not just after pickling, but also with alkali to make the Emerald particles crushed, because the smaller the particle higher transparency. Almost lime, crushed after emerald look, only reinforced epoxy like glue to them. Because the role of pH of dissolution, the gap between the emerald particles will increase, despite the plastic filling into, but worse and the hardness of jade, polishing, or concave, forming a mesh etching textured . Surface is not smooth and plastic, resulting in the emerald surface gloss was waxy, natural jadeite A goods so bright.
The trick to judge Jade A and B, the goods: under natural light or under fluorescent lights, see the emerald background with or without brown, yellow, red material. A cargo Jade basically have these substances, iron or manganese, these substances are the most easily dissolved in acid. B jade is very pure, these variegated wash. Jade is a polycrystalline aggregates, there is no gap between the particles. Nature, the very rich in iron, manganese, rain or groundwater with a chemical reaction to generate the colors of brown, brown, yellow, red iron oxide, manganese oxide, these substances as the solution slowly infiltrated into the emerald particles , of course, more inside the more difficult to penetrate the surface deposition. If the Emerald presents beautiful colors such as red or yellow, which we call the kingfisher.
Jade B goods: low-grade jade, acid treatment rinse the removal of impurities. Epoxy resin and then consolidation, the structure has been destroyed after a certain period of time, the color quality will deteriorate.
Jade C goods: Jade by manually adding dye processing. The color concentrated in fissures, customers in the transmission light and dark environment, easily observed color was filamentous distribution. After a certain period of time, the color quality will be worse.
B jade naked eye:
(1) weaker than the luster of natural jade, to observe the surface under the light, like the surface of the candle or pork.
(2) surface with irregular-shaped crack development, with a magnifying glass from the tilt direction can be observed.
(3) color and texture contrast, observe the color messy floating.
(4) the structure changed dramatically, with a magnifying glass to observe the internal particles, loose fragmented sense.
(5) when struck, the sound muffled while the turbidity (This method is used for bracelets), wire bracelet dangling jade or metal percussion.
B goods is not just after pickling, but also with alkali to make the Emerald particles crushed, because the smaller the particle higher transparency. Almost lime, crushed after emerald look, only reinforced epoxy like glue to them. Because the role of pH of dissolution, the gap between the emerald particles will increase, despite the plastic filling into, but worse and the hardness of jade, polishing, or concave, forming a mesh etching textured . Surface is not smooth and plastic, resulting in the emerald surface gloss was waxy, natural jadeite A goods so bright.
The trick to judge Jade A and B, the goods: under natural light or under fluorescent lights, see the emerald background with or without brown, yellow, red material. A cargo Jade basically have these substances, iron or manganese, these substances are the most easily dissolved in acid. B jade is very pure, these variegated wash. Jade is a polycrystalline aggregates, there is no gap between the particles. Nature, the very rich in iron, manganese, rain or groundwater with a chemical reaction to generate the colors of brown, brown, yellow, red iron oxide, manganese oxide, these substances as the solution slowly infiltrated into the emerald particles , of course, more inside the more difficult to penetrate the surface deposition. If the Emerald presents beautiful colors such as red or yellow, which we call the kingfisher.
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