noun 다운로드 🔗공유 정장석, 칼륨 알루미늄 규산염 Potassium aluminum silicate, KAlSi3O8, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. Orthoclase is used in the ceramic and glass industries and as a decorative gravel. Examples : "The countertop in our kitchen is made from granite, which contains grains of quartz, mica, and flesh-colored orthoclase. " 우리 부엌의 조리대는 석영, 운모, 그리고 살색 정장석의 입자를 포함하는 화강암으로 만들어졌습니다. geology mineral material substance chemistry AI와 채팅어휘 게임독해 연습