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 ]
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 ]
n. [ So called after Vulpino, in Italy. ] (Min.) A scaly granular variety of anhydrite of a grayish white color, used for ornamental purposes. [ 1913 Webster ]
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