Fine Blue Bone China Dinnerware Set
Generally speaking, natural crystal has high hardness: Mohs' hardness is 7.0, which is difficult to process. Therefore, most of the products called crystal cups are actually crystal glass products, which are closer to natural crystal products in terms of specific gravity, transparency, and clarity. Since it is glass, it must be different from natural crystal. The former is amorphous and the latter is crystalline. Under the polarizer, the glass appears completely extinct, and the crystal has a unique bull's eye interferogram.
1. Ratio of price:
The price of crystal glasses is more expensive than ordinary wine glasses. The crystal content of the wine glass determines its price and quality. The price of a machine-made crystal cup is usually a few hundred yuan per piece, while a hand-blown crystal cup costs more than one thousand yuan.
2. See transparency:
High-quality wine glasses usually have thinner walls and better appearance. The crystal glass can reflect the wine color more truly and clearly.
3. Hardness of touch cup wall:
Crystal cups generally have stronger hardness than ordinary glass and are more resistant to wear.
4. Look at the refractive index:
Crystal can absorb luster, so when rotating the crystal cup against the light, the crystal has birefringence, like exquisite handicrafts, while ordinary glassware has no gloss and no refraction.
5. Listen to the sound:
Tap lightly, the glass makes a "click, click" sound, and the crystal is a light and brittle metal sound, accompanied by a buzzing echo.
6. Body feel:
The coldness of the crystal is long-lasting, but the glass will feel warm when you hold it, and the heat transfer speed is fast.
7. Smell the aroma:
The wine in the crystal glass smells very fresh, clean and full-bodied. The smell of wine in the glass became very dull, and the smell was not so strong. Take a crystal cup and an ordinary goblet, pour the same American Chardonnay into the two cups respectively, take the leg of the cup with your right hand and gently shake the cup, smell the fragrance, after the comparison, the crystal cup is more fragrant, and The aroma is clean, while the aroma of the glass is slightly cloudy and disordered.
8. Measuring weight:
For two wine glasses of the same size, crystal products are heavier than glass.
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