(4) Hardness: the hardness of natural crystal is large, and the stone is gently scratched on the jewelry, without leaving traces; If there are streaks, it's fake crystal.
5. Sandblasting This method uses high-pressure air to propel sand particles onto the glass surface, creating a frosted effect. Sandblasting is popular for creating custom designs on glassware and architectural features.
Reflective Glass in China A Trend of Innovation and Sustainability