noun 다운로드 🔗공유 각섬석 A green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock. Examples : "The geologist found small crystals of hornblende in the igneous rock sample collected near the school. " 지질학자는 학교 근처에서 채취한 화성암 표본에서 작은 각섬석 결정을 발견했다. geology mineral material AI와 채팅어휘 게임독해 연습