What is a GARDE B jade
Bathe English word meaning " Flush" , the first letter is B. So , rinse off Jade collectively, "B stock" , "bleaching goods ." Jade certainly not flush with water , but with a strong acid immersion, corrosion and dissolution of impurities , stains, make perfectly clear and bright. Rinse off with a strong acid emerald loose structure after etching must be filled fissures , commonly used means of vacuum method is to use a transparent resin injected , this resin is close to the refractive index of jade , polished , high-grade jade is almost no difference .
Found in the last century, "83 Jade" , is a water- colored pigment dry , coarse , base enough fresh, B jade is most suitable for use as raw materials, such as the appearance on the market today in many high-grade jade pendant and wear trim, is to use it made ​​of B goods, jade B goods without the slightest preserve value. After acid soaking emerald , the internal structure was destroyed .
Epoxy resins are organic compounds ,
a long time aging, and gradually turn yellow, while producing many Tortoise . So nice and bright colors slowly faded ,
Therefore drawback B Jade in three ways: First, the fragile , easy to break , such as light touch each other without short crisp sound pronunciation .
Second, aging fade ( time is generally three to five years ) after aging worthless ; Third, the optimization process using the " aqua regia " and other chemical etchant , worn on the body more harm than good .
Currently appeared on the market to replace the water glass or silicone reinforced epoxy resin filling materials do , people more difficult to identify , but it makes Emerald essentially been destroyed, irreparable.
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GRADE B pics
under UV light some GRADE B >Visibility fluorescent under UV light
When magnified observation, B cargo visible around the connectivity textured thread-like crystals of each particle.
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Some pics below when letter A or B
A means GRADE A B means GRADE B