GLASS

Glass, an inorganic solid material that is usually transparent or translucent as well as hard, brittle, and impervious to the natural elements and widespread use in various applications.

Glass is an amorphous solid, meaning its atoms are not arranged in a regular, repeating pattern like in crystals. It is typically transparent or translucent, hard, brittle, and resistant to natural elements. 

Glass is made by cooling a molten mixture of materials, usually including silica (sand), at a rapid rate to prevent crystallization. 

Common uses include windows, tableware, and optical devices. 

It is not a metal; it's a solid with a liquid-like atomic. 

While a broad array of different silica-based glass exists, the most ordinary glazing and container glass is soda-lime glass, also known as soda-lime-silica glass. It accounts for approximately 90% of all manufactured glass and is an essential element in windowpanes, glass containers for beverages and food, and various other goods. Two groups represent the classification: flat glass (windows) and container glass. The techniques differ for these two groups, with a float technique used to produce flat glass; and blowing and pressing techniques to manufacture container glass.

 It is possible to color glass by adding and homogeneously distributing electrically charged ions or by emitting finely dispersed particles to glass in a molten state. While ordinary soda-lime glass appears colorless to the naked eye when it is thin, it contains traces of iron oxide impurities that produce a green tint that is more visible with thick pieces or with scientific instruments. Raw materials containing iron oxide generate green and brown bottles.

 Examples of natural glass include obsidian, formed from cooled volcanic lava.