bn:00063635n
Noun Concept
Categories: Igneous rocks, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Sculpture materials, Volcanic rocks, Articles with short description
EN
porphyry  porphyritic rock  Imperial porphyry  granite porphyry  Igneous rock porphyry
English:
texture
geology
rock
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EN
Porphyry is any of various granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate-rich, generally aphanitic matrix or groundmass. Wikipedia
An igneous rock with large crystals in a fine-grained matrix and important Roman building material Wikipedia Disambiguation
Variety of igneous rock Wikidata
A hard igneous rock consisting of large crystals in a fine-grained matrix. Wiktionary
WordNet 3.0 & Open English WordNet
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