What is the difference between glass and ceramics?

Its a good question to point out the difference, because glasses traditionally are considered as a type of ceramic.

Ceramics normally are the compounds between metal and non metal. This includes Metal-Oxides, Metal-Carbides, Metal-Nitrides etc. The bonding between metal and non metal in a ceramic ranges from completely ionic to completely covalent and in between.Glass basins manufacturers

While ceramics are of different types like glasses, porcelain, clay, refractories, cements etc…. glasses are a type of ceramics. Glasses are super-cooled liquids. They start out generally as liquids at higher temperatures and when you slow cool them, they form crystalline structures like any other materials. The key to forming glasses is in the rate of cooling. you need to apply supercooling or the rate of cooling must be so fast that there is no time for the molecules to settle down to form crystals. this gives us an amorphous structures. And the bonding between the atoms are very disordered and this disorder at the grain boundaries gives glasses its optical properties.