First, the nature is different.
1, glass
Coloured glass, also known as "glaze color", is a rare ornament made of artificial crystals of various colors and fired at a high temperature of 1000 degrees.
2. chalcedony
Chalcedony is a mineral, also known as "chalcedony". Chalcedony is actually a kind of timeliness, SiO? The general name of aphanitic body is a variety of timely.
Second, the characteristics are different.
1, glass
Its color is colorful, and its quality is dazzling.
2. chalcedony
A remarkable feature of chalcedony is that it is as transparent as ice, and good chalcedony permeability can reach the glass type of jadeite.
Third, the use is different.
1, glass
Coloured glaze is an important decorative component in China traditional architecture, which is usually used in palaces, temples, tombs and other important buildings, and is also a kind of painted pottery for artistic decoration.
2. chalcedony
Chalcedony is generally used as the raw material of high-grade handicrafts for carving creation because of its rich colors and thorough texture. Personal ornaments such as bracelets, necklaces and pendants are also common. The best chalcedony, especially the rare variety with bright colors, is mainly used for setting high-grade jewelry and customizing high-grade buttons in fashion.
Refer to the above? Baidu Encyclopedia-Glass, Baidu Encyclopedia-Chalcedony