| 单词 | orthoquartzite |
| 释义 | orthoquartzite [¦ȯr·thǝ`kwȯrt´sīt] PETROLOGY A clastic sedimentary rock composed almost entirely of detrital quartz grains; a quartzite of sedimentary origin. Also known as orthoquartzitic sandstone; sedimentary quartzite. |
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