Granite - A coarse grained, often porphyritic, intrusive, felsic, igneous rock containing megascopic quartz, averaging 25%, much feldspar (orthoclase, microcline, sodic plagioclase) and mica or other coloured minerals.
Granodiorite - intrusive felsic igneous rock similar to granite, but contains more plagioclase than potassium feldspar.