英语词汇“index mineral”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	index mineral
释义	index mineral index mineral [′in‚deks ‚min·rəl] (petrology) A mineral whose first appearance in passing from low to higher grades of metamorphism indicates the outer limit of a zone.
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