Identification of crystal jewelry

Natural crystal clear, often contain cloudy, star-shaped or floc gas-liquid inclusions, and often have microcracks. In addition, natural crystal polarizing, visibility twinning phenomena, such as crystal sphere, from the look down, met with a double shadow phenomenon.

  Synthetic crystal or glass, pure homogeneous body, no cracks, internal often have small bubbles. Look down from the upper sphere, see the following lines of double vision. Recognition by feel, can feel the gravity of greater than synthetic crystal natural crystal; natural crystal cold sense of, and glass have warm feeling.