noun🔗Share홍옥수A hard, reddish brown chalcedony; used in jewelery,"The antique necklace featured a smooth, oval carnelian as its centerpiece. "앤티크 목걸이는 부드럽고 타원형의 홍옥수를 중심 보석으로 사용했다.materialgeologymineralcolorChat with AIVocabulary GamePractice Reading
