A granite, sample 03MW2147 contains plagioclase
(35%), quartz (30%), K-feldspar (25%), sericite (4%), muscovite (3%),
oxides (2%), and chlorite (1%). Quartz grains show both serrated grain
boundaries and recrystallized grains, suggesting partial annealing.
Plagioclase grains are altered to sericite and show carlsbad and albite
twinning. Perthitic K-feldspar seems to overgrow plagioclase in places.
Very pleochroic chlorite probably replaced all biotite. A weak foliation
is defined by micas and quartz aggregates.