Definitions
feldspathoid Tweet Definition of feldspathoid Like Definition of feldspathoid on Facebook
noun 
  1. (mineralogy) A small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group.
  • Varieties:
    1. leucite
    2. nepheline
adjective felthspathoid
  1. (mineralogy) Resembling a feldspar.
Etymology: Feld, field (from Middle High German veld, from Old High German feld) + Spath, spar + Oid, like or resembling.


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