Answer:

gneiss

Answer	Crossword Clue
GNEISS	Metamorphic rock
GNEISS	Coarsegrained rock
GNEISS	Layered rock

GNEISS	Banded metamorphic rock
GNEISS	Pleasant-sounding rock?
GNEISS	Banded rock
GNEISS	Rock variety
GNEISS	Laminated rock.
GNEISS	Flaky rock resembling granite.
GNEISS	Foliated rock.
GNEISS	Banded rock.

GNEISS	Rock.
GNEISS	Granite-like rock.
GNEISS	Laminated rock
GNEISS	Variegated rock
GNEISS	Granitelike rock
GNEISS	Sparkly rock
GNEISS	Rock with colored bands
GNEISS	Rock whose name sounds good?

GNEISS	Rock similar to granite
GNEISS	Quartz source
GNEISS	Coarse-grained rock
GNEISS	Granitic rock
GNEISS	Rock with a garnet variety
GNEISS	Schist's cousin
GNEISS	Metamorphic rock with bands