A granitoid (a coarse grained igneous rock composed mostly of
quartz,
Kspar (alkali-feldspar) and
plagioclase), with subequal amounts of plagioclase and Kspar. More specifically a granite having an
alkali-feldspar/total feldspar ratio from 0.35-0.65 on the QAPF diagram. Often called an adamellite, though this name has been used for other rocktypes also.