What does igneous feel like?
Think of the texture of something you would bake in the oven. In many igneous rocks, large mineral crystals "float" in a fine-grained groundmass. The large grains are called phenocrysts, and rock with phenocrysts is called a porphyry — that is, it has a porphyritic texture.Oct 16, 2019
Think of the texture of something you would bake in the oven. In many igneous rocks, large mineral crystals "float" in a fine-grained groundmass. The large grains are called phenocrysts, and rock with phenocrysts is called a porphyry — that is, it has a porphyritic texture.Oct 16, 2019
