Porphyrite :: Porphyrite (n.) A rock with a porphyritic structure; as, augite porphyrite..
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..
Porphyrization :: Porphyrization (n.) The act of porphyrizing, or the state of being porphyrized..
Porphyrize :: Porphyrize (v. t.) To cause to resemble porphyry; to make spotted in composition, like porphyry..
Porphyrogenitism :: Porphyrogenitism (n.) The principle of succession in royal families, especially among the Eastern Roman emperors, by which a younger son, if born after the accession of his father to the throne, was preferred to an elder son who was not so born..
Porphyry :: Porphyry (n.) A term used somewhat loosely to designate a rock consisting of a fine-grained base (usually feldspathic) through which crystals, as of feldspar or quartz, are disseminated. There are red, purple, and green varieties, which are highly esteemed as marbles..