noun🔗Share石英,二氧化硅。 The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO2. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment."The geologist found a beautiful piece of quartz in the park. "地质学家在公园里发现了一块漂亮的石英石。geologymineralmaterialchemistryscienceenvironmentnatureChat with AIVocabulary GamePractice Reading