Read Edit View history 铁镁质 tiěměizhì mafic Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 铁镁质/鐵鎂質 · tiěměizhì · mafic 2026/03/04 铁镁质 / 鐵鎂質 tiěměizhì mafic mafic rock (containing magnesium and iron, so comparatively heavy, making oceanic plates) 洋壳主要由铁镁质岩石组成。 created sense Mar 4, 2026, 02:25 AM