A Gneiss rock is somewhat dark-greenish, depending on when it was made.
No, gneiss is metamorphic.
No. Gneiss is a metamorphic rock.
Gneiss is an example of a metamorphic rock.
Granite is felsic on the color index. It is largely composed of potassium feldspar and quartz.
A Gneiss is a Metamorphic rock
Granite is an igneous rock and gneiss is a metamorphic rock.
Gneiss is a metamorphic rock and its parent rock (protolith) could be a granite or schist.
Gneiss is a rock, not a mineral.
I am trying to find out what the other two types of rock besides gneiss form the Matterhorn. Gneiss is a metamorphic rock. That's a nice piece of gneiss!
Gneiss does not have a streak because it is a metamorphic rock composed of interlocking minerals with no cleavage. The streak test is typically used to determine the color of the powdered form of a mineral when rubbed against a streak plate, but this is not applicable to gneiss.
Gneiss can be formed by the metamrphism of either granite or schist.
Gneiss is a banded metamorphic rock.