gran·o·di·o·rite 
(grăn′ə-dīə-rīt′)
(grăn′ə-dīə-rīt′)n.
A coarse-grained igneous rock consisting primarily of quartz, plagioclase feldspar, and potassium feldspar, and also containing biotite, hornblende, or pyroxene.
gran′o·di′o·ritic (-rĭtĭk) adj.