quartz noun Stress: first syllable 🤍 Save Syllables: quartz (1) English Definition A hard mineral consisting of silica, found widely in igneous and metamorphic rocks Example Sentence This watch uses a quartz crystal to keep time. US IPA /kwɔːrts/ 🔊 Listen US UK IPA /kwɔːts/ 🔊 Listen UK Synonyms crystal silica mineral gemstone Share this Word Facebook WhatsApp X Telegram Copy Link