noun🔗Share輝緑岩A fine-grained igneous rock composed mostly of pyroxene and feldspar."The geology student identified the dark, fine-grained rock as diabase, noting its high content of pyroxene and feldspar. "地質学の学生は、その暗く細粒の岩を輝緑岩と特定し、輝石と長石の含有量が高いことに注目した。geologymaterialmineralChat with AIVocabulary GamePractice Reading
