单词 | nasonite |
释义 | nasonite/ˈneɪsənʌɪt/Mineralogy noun A trigonal silicate and chloride of calcium and lead, Ca4Pb6(Si2O7)3Cl2, which forms prismatic crystals and occurs as white or grey granular masses. OriginLate 19th century. From the name of Frank Lewis Nason, U.S. geologist formerly with the Geological Survey of New Jersey + -ite. |
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