Colored glaze
Colored glaze is made of artificial crystals (containing 24% lead dioxide) of various colors (the colors are produced by various metal elements) as raw materials and fired at a high temperature of more than 1,000 degrees. Its colour is flowing and clouds, and the quality is crystal clear and dazzling.
Colored glaze is the name of glass in ancient China, and it is a narrow term for glass. Now colored glaze generally refers to colored glass works made by adding various oxides. Nowadays, works made of optical glass, flat glass, crystal glass, and borax glass are generally referred to as glass works of art. It can be seen that colored glaze is only a type of glass, and its scope is much smaller than that of glass.
The material of the glass is artificial crystal glass. Its characteristic is that it has a high refractive index to light, so it can present a crystal clear effect. With the cooperation of light, it can fully express its artistic characteristics. As a piece of art, Colored glaze is not only a work of art but also a religious object, and the works produced by the casting process have strong expressiveness, rich in layers, especially the flow of colors is unpredictable, or implicit, and each piece is different .
As the hardness of glass is relatively strong, it is equivalent to the strength of nephrite. But it is also relatively brittle, it can’t be beaten or bumped hard. The polariscope can be used to detect the internal stress of colored glaze products, to ensure and improve the quality of colored glaze products.
