usually smooth i think.
Usually have a rougher texture
a banded texture
They are Sedimentary rocks, Igneous rocks, and Metamorphic rocks.
Non-foliated Texture!
Usually have a rougher texture
Metamorphic rocks that do not exhibit foliation.
foliated
Metamorphic rocks with a layered or banded look are referred to as foliated.
A schistose texture.
Parent rocks of metamorphic rocks can include igneous, sedimentary, or pre-existing metamorphic rocks. These rocks undergo changes in mineralogy and texture due to heat, pressure, and chemical processes without melting, resulting in the formation of metamorphic rocks. Different parent rocks can give rise to different types of metamorphic rocks.
A banded texture
Non-foliated metamorphic rock, like quartzite and marble.