单词	novaculite
释义	novaculite /nə(ʊ)ˈvakjʊlʌɪt / noun [mass noun] Geology A hard, dense, fine-grained siliceous rock resembling chert, with a high content of microcrystalline quartz.Novaculite is a sedimentary rock composed mostly of microcrystalline quartz. Origin Late 18th century: from Latin novacula 'razor' + -ite1.
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