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Plagioclase vs Tephrite - What's the difference?

plagioclase | tephrite |

As nouns the difference between plagioclase and tephrite

is that plagioclase is (mineralogy) any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium while tephrite is (geology) an igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.

plagioclase

English

Noun

(en-noun)
  • (mineralogy) Any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium.
  • *2004 , (Richard Fortey), The Earth , Folio Society 2011, p. 51:
  • *:These crystals are of one of the most abundant minerals in nature – feldspar; furthermore, they are of a particular kind of feldspar rich in the element calcium, termed plagioclase .

    • See also

    * ("plagioclase" on Wikipedia) * albite * oligoclase * andesine * labradorite * bytownite * anorthite * rock * mineral * feldspar

    tephrite

    English

    Noun

  • (geology) An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.
    • (Webster 1913)