feldspar : Idioms & Phrases


Glassy feldspar

  • (Min.), a variety of orthoclase; sanidine.
Webster 1913

Labrador feldspar

  • . See Labradorite.
Webster 1913

white feldspar

  • noun a widely distributed feldspar that forms rocks
    albite.
WordNet

~= feldspar

  • a variety of oligoclase with internal firelike reflections due to the presence of minute crystals, probably of hematite; sunstone.
Webster 1913