Sample 00MW0605 is a quartz diorite comprised of
plagioclase (60%), quartz (5%), oxides (4%), epidote (2%), and sphene
(1%). Some plagioclase is poikiloblastic, and seritization is common
throughout. Quartz grains show subgrains and undulose extinction. Very
pleochroic biotite occurs in bundles, as no foliation is recognized.
Fine-grained epidote is likely an alteration product of mafics like
hornblende (which is not present) and plagioclase.