Glass has outstanding transparency and light transmission properties, high chemical stability, and can achieve strong mechanical strength and insulation effects according to different processing methods. It can even change color autonomously and block excessive light, thus meeting the needs of different professions.

1、 What is crystal glass

Crystal glassware originates from Europe, with the main production areas being Germany, France, Italy in Western Europe, and Czech Republic, Hungary in Eastern Europe. Crystal glass is made by dissolving sand and lead oxide together, and each factory has its own secret recipe to make the crystal particularly shiny and clear. A crystal containing 24% or more lead is called full lead crystal, while a crystal containing less than 24% lead is called lead crystal. The advantage of adding lead is that it has a texture, transparency, clarity, and brightness; The harm is relatively soft and easy to grind, so it is not necessarily better to have more lead. Nowadays, modern people are paying more and more attention to the concept of environmental protection, which has also infused environmental elements into the production of crystal glass. The lead-free and barium free crystal glass has been introduced, which is particularly bright, transparent, and has a certain degree of elasticity. Its safety level is twice as high as that of ordinary crystal glass. The crystal glass products with bright and transparent craftsmanship are very precise, with brilliant crystal radiance and streamlined design. They can be bought as bedding or used as daily necessities.

2、 The difference between glass and crystal

1. Different materials: Crystal is a crystalline form of silicon dioxide, while glass is just a molten mixture containing silicon dioxide;

2. Different effects: Glass only has decorative effects, while crystal not only has decorative effects, but also piezoelectric effects, which have special health benefits;

3. Price difference: The unit price of crystal is several times or even dozens of times higher than that of glass;

4. Different processing techniques:

Glass can be hot cast into shape, saving materials, labor, and low cost; Crystal is a crystalline body that cannot be reversed after heating and melting, so it cannot be formed by hot casting and can only be processed by cold processing methods such as cutting and grinding;

Crystal has high hardness and is not easily worn out; Glass has low hardness and is prone to scratching;

Crystal has good stability and will not change color after prolonged use; Glass is prone to yellowing.

5. Different physical properties:

Crystal is a crystalline body with high hardness, while the hardness of glass is such that crystal can leave marks on glass, and vice versa;

Crystal has good thermal conductivity, and when touched with the tip of the tongue, it feels cold, while glass appears warm;

Crystal can transmit light, while glass cannot;

High quality crystals look clear and transparent when exposed to light, with no small bubbles or water patterns inside. Therefore, the quality level and price of crystal glass are closely related to the glass.

Article source: Tempered glass coverwww.yinghuade.com