Porphyry Igneous Rocks
Porphyry is an igneous rock characterized by porphyritic texture. Porphyritic texture is a very common texture in igneous rocks in which larger crystals (phenocrysts) are embedded in a finegrained groundmass. Porphyry is an igneous rock that contains larger crystals (phenocrysts) in a finegrained groundmass. Kfeldspar phenocrysts in this sample.