lamprophyreyoudaoicibaDictYouDict[lamprophyre 词源字典]
"A porphyritic igneous rock consisting of a fine-grained feldspathic groundmass with phenocrysts chiefly of biotite", Late 19th century: from Greek lampros 'bright, shining' + porphureos 'purple'.[lamprophyre etymology, lamprophyre origin, 英语词源]