Dictionary.com
definitions
  • synonyms

porphyrite

n.

1796 as a modern mineral name, from porphyry + -ite (2). Related: Porphyritic.

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for porphyrite

Historical Examples

  • In the intersertal and porphyrite diabases, fresh or devitrified glassy base is not infrequent.

    Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3

    Various

  • In China, at the close of the period, there were enormous eruptions of melaphyre, porphyrite and quartz-porphyry.


  • About
  • Cookies, Terms, & Privacy
© 2018 Dictionary.com, LLC.