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Ordinary glass vs artificial crystal
Artificial crystal is glass containing lead oxide. The higher the content of lead oxide, the higher the refractive index and the hardness. Therefore, the value of high-quality crystal vessels is very different from ordinary glass or low-refractive crystal.
The sound you hear when you hit the instrument with your hand will be different. The sound of artificial crystal products is crisp, and there will be a lingering sound after a metal-like impact. Crystal, the louder the sound. The sound of glass products is dull and non-echoing, which is a dull "slap" sound.
Look at the gloss Compared with sunlight, the colorful light refracted by high-quality crystals is bright, and the transition light is very natural and rich. The refractive color of glass is often incomplete and dim. Its transparency is compared under natural light, and high-quality crystals have high transparency and show crystal white, while ordinary glass or impure crystals will be yellow or mixed with cyan.
Than pattern For crystals with the same fineness, the higher the degree of handwork of the pattern, the more detailed and complicated the pattern forming on a small area, the higher the value. Touching by hand, the surface of the handmade pattern has a rough feel, while the surface of the mechanism pattern is smooth.