Answer:
1)Gneiss is a medium- to coarse-grained, semischistose metamorphic rock. It is characterized by alternating light and dark bands differing in mineral composition (coarser grained than schist). The lighter bands contain mostly quartz and feldspar, the darker often contain biotite, hornblende, garnet or graphite.
2)The Biggest Cities in New York – NOT Including New York City
1 - Buffalo, New York. Population: 261,025.
2 - Rochester, New York. Population: 210,855.
3 - Yonkers, New York. Population: 197,399.