The difference between sapphire crystal and sapphire glass

There are significant differences between sapphire crystal and sapphire glass in terms of chemical composition, physical properties and application fields.

Chemical composition and physical properties:

Sapphire glass (SAPPHIRE CRYSTAL) refers to synthetic sapphire. Its chemical composition is aluminum oxide (Al2O3), which has high hardness (Mohs hardness is 9) and brittleness. It is mainly used in the manufacture of watch mirrors and is favored for its anti-wear properties.

The chemical composition of sapphire crystal glass (sapphire-colored crystal glass) is crystal (silicon dioxide), which is not directly related to sapphire. It is a man-made material with a hardness between 7 and 8, one level lower than sapphire mirror

Application areas:

Due to its high hardness and wear resistance, sapphire glass is mainly used in areas that require extremely high durability, such as watch mirrors.

Sapphire crystal glass may be used in products that require high transparency and a certain degree of hardness, but is not as durable as sapphire glass.

Name differences:

Sapphire glass is often called "SAPPHIRE CRYSTAL" in English, while sapphire crystal glass may be "SAPPHIRE CRYSTAL GLASS" or "SAPPHIRE CRYSTAL" in English, indicating that there is a difference in naming between the two, reflecting their different chemical compositions and physical properties.

To sum up, although sapphire crystal and sapphire glass may be similar in appearance, they have clear differences in chemical composition, physical properties, and application areas. Sapphire glass is real sapphire, which is highly hard and brittle, while sapphire crystal glass is artificial crystal with lower hardness. The two differ in durability and application.