amphiboleyoudaoicibaDictYouDict[amphibole 词源字典]
"Any of a class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals", Early 19th century: from French, from Latin amphibolus 'ambiguous' (because of the varied structure of these minerals), from Greek amphibolos, from amphi- 'both, on both sides' + ballein 'to throw'.[amphibole etymology, amphibole origin, 英语词源]