Jade A cargo B goods big different to teach you how to distinguish between Chinese jewelry

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natural A cargo jade is the best emerald , to learn the essence of heaven and earth the sun and the moon bred folk called The quality will be more moist, and the body will get a role in health care . how to distinguish A cargo Jade B jade ? look shiny : Jade A cargo surface polished , smooth and shiny as a mirror, with a strong reflective glass . see color : emerald A cargo natural colors , layering ; Jade B goods colors true colors Desaturate , bright and yellow , the distribution without layering , Chaos Isshiki . look at the structure : raw jade , jade B goods can be produced more commonly containing a lot of impurities and loose structure Jade being soaked in strong acid and alkali corrosion .

some of the material into the bring out the surface dissolution , produce and internal along mineral crystal formation internal communication network of cracks and surface drains , internal cracks jagged crack . Intertwined within the fractured under the conditions of the transmitted light , visible , and seriously affect the permeability ; reflective conditions , visible surface corrosion pits or reticulate lost emerald original shiny glass .

see bubbles : underfill Jade B goods in the surface layer or fissures at the colloidal visible air bubbles remain . see impurities : Jade A cargo by larger observation, yellow , brown , black and sometimes see impurities ; relatively pure jade B goods , can not find impurities . see fluorescence : Jade B goods are to medium yellow-green , blue-green fluorescence . see thermal reaction : A cargo Jade does not melt below 800 ℃ , the underfill Jade B goods heated to 200 ℃ ~ 300 ℃ after carbonization . density : theoretically Jade B cargo density is slightly lighter than A cargo , but the lack of practical operational this point , because the density of the emerald is in a range of changes .