マイロナイトマイロナイトMeanings1nounmylonitemineralogyA fine-grained, compact metamorphic rock produced by dynamic recrystallization in fault zones. Technical term used in geology and mineralogy.断だん層そう帯たいからマイロナイトのサンプルを採さい取しゅした。We collected samples of mylonite from the fault zone.
