<page_title> Silicon dioxide </page_title> <section_title> Crystalline forms </section_title> <table> <cell> α-quartz <col_header> Form </col_header> </cell> <cell> 2.648 <col_header> ρ g/cm3 </col_header> </cell> <cell> stishovite <col_header> Form </col_header> </cell> <cell> 4.287 <col_header> ρ g/cm3 </col_header> </cell> </table>
The density of stishovite is 4.287 g/cm³ and α-quartz has a density of 2.648 g/cm³.