| 单词 | quartz porphyry |
| 释义 | quartz porphyrynoun : a porphyritic extrusive or dike rock in which quartz with more or less corroded crystals and orthoclase and usually mica, amphibole, or pyroxene occur as phenocrysts in a groundmass that is felsophyric, granophyric, or vitrophyric |
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