Any of various kinds of rock resembling porphyry (sense 2a) in texture but of a different colour; (Geology) any igneous rock having a homogeneous…
| 单词 | θ5755 | 
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > igneous rock > 			[noun]		 > porphyrite rock > containing felspar crystals (1)		 porphyry1757 Any of various kinds of rock resembling porphyry (sense 2a) in texture but of a different colour; (Geology) any igneous rock having a homogeneous… | 
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