Colorless glass made of almost pure silica
English: quartz glass, quartz, vitreous silica, lechatelierite, crystal
quartzEnglish
quartz, crystal, lechatelierite, quartz glass, vitreous silica
Noun
A hard glossy mineral consisting of silicon dioxide in crystal form, present in most rocks (especially sandstone and granite), yellow sand is quartz with iron oxide impurities
English: quartz