单词 | itabirite |
释义 | itabirite [´ēd·ǝ`bi´rīt] GEOLOGY A laminated, metamorphosed, oxide-facies iron formation in which the original chert or jasper bands have been recrystallized into megascopically distinguished grains of quartz and in which the iron is present as thin layers of hematite, magnetite, or martite. |
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