单词 | anorthite |
释义 | anorthite [ǝ`nȯr´thīt] MINERALOGY The white, grayish, or reddish calcium-rich end member of the plagioclase feldspar series; composition ranges from Ab10An90 to Ab0An100, where Ab = NaAlSi3O8 and An = CaAl2Si2O8. Also known as calciclase; calcium feldspar. |
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