porphyritic

Describing a rock that contains large, noticeable crystals, usually feldspars.
Found on http://www.encyclo.co.uk/local/22291

Porphyritic

Porphyritic is an adjective used in geology, specifically for igneous rocks, for a rock that has a distinct difference in the size of the crystals, with at least one group of crystals obviously larger than another group. Porphyritic rocks may be aphanites or extrusive, with large crystals or phenocrysts floating in a fine-grained groundmass of non...
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Porphyritic

(Of igneous rocks) Comprising large crystals (phenocrysts) set in a finer grained or glassy groundmass.
Found on https://www.encyclo.co.uk/local/20501

porphyritic

[adj] - (of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals
Found on http://www.webdictionary.co.uk/definition.php?query=porphyritic

Porphyritic

• (a.) 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.
Found on http://thinkexist.com/dictionary/meaning/porphyritic/

porphyritic

adjective (of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals
Found on https://www.encyclo.co.uk/local/20974

Porphyritic

Por`phy·rit'ic adjective [ Confer French porphyritique .] (Min.) 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.
Found on http://www.encyclo.co.uk/webster/P/129

porphyritic

A texture of an igneous rock in which large crystals (phenocrysts) are set in a matrix of relatively finer-grained crystals or of glass.
Found on https://www.encyclo.co.uk/local/22327
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