藍らん閃せん石せきMeanings1nounglaucophaneA blue amphibole mineral common in blueschist facies metamorphic rocks. Technical term used in geology and mineralogy.藍らん閃せん石せきは低てい温おん高こう圧あつ型がた変へん成せい岩がんに特とく徴ちょう的てきな鉱こう物ぶつである。Glaucophane is a mineral characteristic of low-temperature, high-pressure metamorphic rocks.