Please.
Those are two types of metamorphic rocks. Banded metamorphic rocks are when rocks layer into layers and they look like strips or Bands. Non banded is the opposite of banded
Metamorphic rock can be banded and foliated. Banded metamorphic rock has visible layers or bands of different mineral compositions, while foliated metamorphic rock has a layered or sheet-like appearance due to the alignment of minerals. These patterns are a result of the intense heat and pressure the rock undergoes during metamorphism.
Gneiss is a banded metamorphic rock.
Metamorphic rocks with a layered or banded look are referred to as foliated.
Quartzite, a non banded metamorphic rock.
Gneiss, pronounced 'nice', is a coarse grained banded metamorphic rock.
MARBLE
No
Gneiss is a metamorphic rock that forms from the recrystallization of pre-existing rocks under high temperature and pressure conditions. It is characterized by its banded texture and coarser grain size compared to other types of metamorphic rocks.
A banded texture
The Texture term for metamorphic rock which are not banded or layered is non-foliated metamorphic rock. Good examples are marble and quartzite.
In sedimentary rock it is called striated or stratified. In metamorphic rock it is foliated or gneissic.