Crystals of common defects
• Hidden crack
In transparent Crystal, hidden crack growth in sparkling flake, sometimes iridescence effects. These cracks are in crystal growth, compressed compression in internally generated some invisible crack hidden cracks in Furong jade, Amethyst, crystal balls and white Crystal column is common. Crack is filled with material later formed healing of crack, which is the original crack long lived. This crack on Crystal's impact was relatively small.
• Cotton, cloud or slag inclusions, impurities in the Crystal there are foggy or felt like cotton wool inclusions, slag-like material, the existence of these inclusions affect the overall appearance of the Crystal. Local containing black or any other color or Crystal speckle material, and Crystal overall coordination was seen as Crystal impurities, such impurities in the Crystal is of an inferior kind.