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pinite 块云母 块云母 pinite n 1: grey or green or brown mineral similar to mica and containing aluminum and potassium sulphates Pinite \Pi"nite\, n. [L. pinus the pine tree.]
1. (Paleon.) Any fossil wood which exhibits traces of having belonged to the Pine family. [1913 Webster] 2. (Chem.) A sweet white crystalline substance extracted from the gum of a species of pine ({Pinus Lambertina}). It is isomeric with, and resembles, quercite. [1913 Webster] Pinite \Pin"ite\, n. [So called from Pini, a mine in Saxony.] (Min.) A compact granular cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, as iolite. [1913 Webster]
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