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porphyry 音标拼音: [p'ɔrfɚi] n. 斑岩 斑岩 porphyry n 1: any igneous rock with crystals embedded in a finer groundmass of minerals [ synonym: { porphyry}, { porphyritic rock}] Porphyry \ Por" phy* ry\, n.; pl. { Porphyries}. [ F. porphyre, L. porphyrites, fr. Gr. ? like purple, fr. ? purple. See { Purple}.] ( Geol.) A term used somewhat loosely to designate a rock consisting of a fine- grained base ( usually feldspathic) through which crystals, as of feldspar or quartz, are disseminated. There are red, purple, and green varieties, which are highly esteemed as marbles. [ 1913 Webster] { Porphyry shell} ( Zool.), a handsome marine gastropod shell ({ Oliva porphyria}), having a dark red or brown polished surface, marked with light spots, like porphyry. [ 1913 Webster]
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