TERMIUM Plus®

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PORPHYROBLASTIC [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-07-25

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

Pertaining to the texture of a recrystallized metamorphic rock having large ideoblasts of minerals possessing high form energy (e.g. garnet, andalusite) in a finer-grained crystalloblastic matrix.

OBS

Not to be confused with "blastoporphyritic."

French

Domaine(s)
  • Pétrographie
  • Minéralogie
DEF

Décrit une roche métamorphique dont la texture présente des mégacristaux (porphyroblastes) dans une matrice aux cristaux plus fins (cristalloblastes).

Spanish

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