labradorite


labradorite

noun

  1. a feldspar mineral of the plagioclase group, often characterized by a brilliant change of colors, with blue and green most common.

noun

  1. a blue, green, or reddish-brown feldspar mineral of the plagioclase series: used as a decorative stone. Formula: CaAl 2 Si 2 O 8 .NaAlSi 3 O 8

  1. A blue, gray, green, or brown triclinic mineral that is a variety of plagioclase feldspar. It occurs in igneous rocks.

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