Question

What are gneiss and schist?

Answer 1

Metamorphic rocks are rocks that had transformed ( changed in form ), under high pressure/temperature. Gneiss and schist are different types of metamorphic rocks.

Explanation:

Metamorphism is transformation in rocks, under conditions of

extreme pressure and/or temperature..

Gneiss and schist are two types of metamorphic rocks.

Gneiss is a banded or foliated ( thin laminar ) structure. It is coarse-

grained with feldspar, quartz, and mica..

There is a variety of schists. Schist is layered metamorphic rock. It is

mainly made up of mica-origin minerals..