Definition of porphyritic in English:

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porphyritic

Pronunciation: /ˌpôrfəˈridik/

adjective

Geology
Relating to or denoting a rock texture, typically found in volcanic rocks, containing distinct crystals or crystalline particles embedded in a fine-grained groundmass.
Example sentences
  • Coarser fractions additionally contain volcanic clasts of vesicular and porphyritic lava, tuff and pumice.
  • These crystals eventually form the phenocrysts found in porphyritic rocks.
  • The original porphyritic texture with plagioclase phenocrysts is still recognizable.
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