noun Herunterladen 🔗Teilen Quarz 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. Examples : "The geologist found a beautiful piece of quartz in the park. " Der Geologe fand ein wunderschönes Stück Quarz im Park. geology mineral material chemistry science environment nature Mit KI chattenVokabelspielÜbung: Lesen