GEOLOGY & PLANETARY SCIENCE A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site albite Albite. Credit: USGS A common mineral occurring in igneous rocks, consisting of sodium aluminum silicate (NaAlSi3O8); it often forms vitreous crystals of various colors. Albite, a variety of plagioclase, is one of the three end-members (pure compounds) of the feldspar group. Related category    • GEOLOGY AND PLANETARY SCIENCE Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP