Material: Although crystal cup is also a kind of glass, its main component in addition to silica , but also introduced lead, barium, zinc, titanium and other substances, which makes crystal cup in appearance, hardness, refraction and other aspects are different from ordinary glasses.

Feel: Because the thermal conductivity of crystal is stronger than that of glass, touching the crystal cup with your hand will feel cooler than touching the glass.

Hardness and durability: The hardness of natural crystal is 7, and the hardness of glass is 5, so crystal can carve glass. However, this does not mean that crystal glasses are more durable, because crystal glass is more elastic but fragile, while ordinary glasses are relatively unbreakable.

Refraction: The crystal cup has a high transparency and refractive index, its appearance is bright and crystal, and can absorb luster, even ultraviolet light. Rotate the crystal cup against the light, you will find that it is like a fine craft, white and clear, reflecting the charming multicolor light. In contrast, ordinary glasses do not have such gloss and refraction.

Sound: When gently tapped or flicked with your fingers, the crystal cup produces a crisp metallic sound and creates a beautiful aftersound in the air. The ordinary glass will only emit a dull "click, click" sound.