Porphyrite(n.) A rock with a porphyritic structure; as, augite porphyrite.
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.
Words within porphyritic