almandine vs almondine

almandine

noun
  • A type of garnet having a deep red color, inclining to purple, with the chemical formula Fe₃Al₂(SiO₄)₃. 

almondine

noun
  • A gemstone that is either a deep red garnet or a purple spinel. 

adj
  • Like or of the almond or almond tree. 

  • Garnished with almond slices. 

How often have the words almandine and almondine occurred in a corpus of books? (source: Google Ngram Viewer )