Relating to, or resembling, porphyry, that is, characterized by the presence of distinct crystals, as of feldspar, quartz, or augite, in a relatively fine-grained base, often aphanitic or cryptocrystalline.

Of or like smaller grained igneous rocks with separate crystals of greater size.

A textural term for igneous rock that has phenocrysts distributed throughout a finer matrix.

A textural term describing igneous rocks containing relatively large crystals set in a finer grained groundmass.

(of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals

An igneous rock texture characterized by larger crystals (phenocrysts) in a matrix of distinctly finer crystals (groundmass).

A texture in igneous rocks in which some crystals are distinctly larger than others.

A type of texture exhibited by igneous rocks where some minerals occur as significantly larger crystals in an otherwise fine matrix. See Phenocryst.The picture below show such a porphyritic texture and the large phenocrysts are easy to spot.... More

rocks containing large an often well-formed crystals set in a finer matrix

Said of the texture of an igneous rock in which larger crystals (phenocrysts) are set in a finer-granted groundmass, which may be crystalline or glassy or both

igneous rocks texture characterized by large euhedral phenocryts belonging to a first stage of crystallization (quartz, feldspars, feldspathoides, amphibole, pyroxene, peridot).

of, having to do with, containing, or resembling porphyry; of the nature of structure characteristic of prophyry; containing distinct crystals embedded in a compact groundmass. [AHDOS