Andesite (noun) Definition, Meaning & Examples

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noun
  1. a dark-colored volcanic rock composed essentially of plagioclase feldspar and one or more mafic minerals, as hornblende or biotite.
noun
  1. a fine-grained tan or grey volcanic rock consisting of plagioclase feldspar, esp andesine, amphibole, and pyroxene
    Andesite (noun) Definition, Meaning & Examples

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