#spinel_ruby__ruby_spinel  a spinel used as a gemstone (usually dark red)
  supertype:  spinel  a hard glassy mineral consisting of an oxide of magnesium and aluminum; occurs in various colors that are used as gemstones
  subtype:  almandine  a purple variety of the ruby spinel
  subtype:  balas_ruby__balasruby__balas__bala  a pale rose-colored variety of the ruby spinel
  subtype:  rubicelle  a yellow or orange variety of ruby spinel

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