noun🔗Share苦鉄質岩A rock with such properties."The dark, heavy basalt was clearly a mafic. "暗くて重い玄武岩は明らかに苦鉄質岩だった。geologymaterialmineralChat with AIVocabulary GamePractice Reading
adjective🔗Share苦鉄質のDescribing rocks, such as silicate minerals, magmas, and volcanic and intrusive igneous rocks, which contain relatively high concentrations of magnesium and iron."The dark, heavy basalt rock is a good example of a mafic rock. "暗くて重い玄武岩は、苦鉄質岩の良い例です。geologymaterialmineralscienceChat with AIVocabulary GamePractice Reading
