Containing relatively big isolated crystals in quite a few fine surface.
of or related to porphyry
containing big crystals in a superb size of product
associated with, or resembling, porphyry, this is certainly, characterized by the presence of distinct crystals, by feldspar, quartz, or augite, in a relatively fine-grained base, often aphanitic or cryptocrystalline.
(of stones) comprising porphyry or containing big crystals in a superb groundmass of minerals
Containing or resembling porphyry; composed of a compact homogeneous stone where distinct crystals or grains of feldspar or other minerals tend to be embedded: as, porphyritic granite. Additionally porphyraceous, and often, incorrectly, porphyroid.