一看选料:选料精良的水晶制品,应看不到星点状、云雾状和絮状分布的气液包体。质地以纯净、光润、晶莹为好;如果发现有深浅不一的断裂纹、斑点,则属于次品。二看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音 A look at the choice of materials: well-chosen crystal products, should not see the star-shaped, cloud-like and floccular distribution of gas-liquid inclusions. The texture is pure, smooth, and crystal. If there are cracks and spots with different shades, it is a defective product. Second, look at the work: crystal products processing process is divided into two types, namely, grinding and carving. Such as crystal necklaces, bracelets, earrings, etc. are ground products; Guanyin