It is made up of a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2.
Atamyadu waxay kuxiran yihiin qaab joogto ah oo ah SiO4 silicon oxygen tetrahedra, iyadoo ogsijiin kasta la wadaagayo inta udhaxeysa laba tetrahedra, iyadoo la siinayo guud ahaan qaacidada kiimikada ee SiO2.