Glass

Glass

An amorphous solid or super cooled liquid,  mainly contains Silica SiO2.

Different coloues of glass and its constituent

•Red Glass : SiO2+CuO

•Ruby Red : SiO2+AuCl3

•Brown Glass : SiO2+Fe2O3

•Green Glass : SiO2+Cr2O3

•Blue Glass : SiO2+CoO

These are some main colours of glass and its different constituents.

If you have any doubt tell me in comment section.