Do you know what is the difference between a crystal glass and a glass? If you don't know much about it, just take a look at it with Xiaobian!
One by hand: the glass is highly thermally conductive and cooler when touched by a crystal glass.
Second, look at the hardness: the hardness of the glass is 7 glass 5, the crystal can score the glass.
Third, look at the refraction: Rotating the glass against the light, it is like a beautiful craft, because the crystal can absorb the luster, while the ordinary glassware is not glossy, and it is not refraction.
4. Listen to the sound: lightly tap, the crystal glass is a light and brittle metal sound.
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