Accueil >  Term: bird's-eye porphyry
bird's-eye porphyry

A name given by prospectors and miners to a fine-grained igneous rock having small phenocrysts, particularly if they are quartz, from a fancied resemblance to birds' eyes.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 points
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