单词 | andesine |
释义 | andesine [`an·dǝ´zēn] MINERALOGY A plagioclase feldspar with a composition ranging from Ab70An30 to Ab50An50, where Ab = NaAlSi3O8 and An = CaAl2Si2O8; it is a primary constituent of intermediate igneous rocks, such as andesites. |
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