单词 | petalite |
释义 | petalite/ˈpɛtəlʌɪt/ /ˈpɛt(ə)lʌɪt/Mineralogy noun A rare mineral of the monoclinic crystal system consisting of lithium aluminosilicate, LiAlSi4O10, which occurs as greyish to black metallic masses with a leaflike cleavage and is used in some ceramics. OriginEarly 19th century. From ancient Greek πέταλον leaf + -ite, after German Petalit. |
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