pinite

3 definitions found

pinite - Collaborative International Dictionary of English v.0.48 :

  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]

  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 - WordNet (r) 2.1 (2005) :

  pinite
      n 1: grey or green or brown mineral similar to mica and
           containing aluminum and potassium sulphates