Definition of porphyritic in English:

Share this entry

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.

For editors and proofreaders

Syllabification: por·phy·rit·ic

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.