noun🔗Share석영암A metamorphic rock consisting of interlocking grains of quartz."The hiking trail was made of crushed quartzite, which sparkled in the sunlight. "하이킹 트레일은 햇빛에 반짝이는 부서진 석영암으로 만들어졌다.geologymaterialChat with AIVocabulary GamePractice Reading
