Metamorphic rocks with a layered or banded look are referred to as foliated.
foliated metamorphic rocks
Foliated metamorphic rocks.
foliated
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A banded texture
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.
its foliated
You can identify metamorphic rocks by various minerals or a lack of thereof (mineralogy), also by foliation: whether they're foliated or non-foliated. If they show presence of shistosity or gneissosity (alignment of minerals ) , fissility and grunular appearance.
A banded texture
a banded texture
foliated texture
The Texture term for metamorphic rock which are not banded or layered is non-foliated metamorphic rock. Good examples are marble and quartzite.
its foliated
its foliated
Foliated Texture
You can identify metamorphic rocks by various minerals or a lack of thereof (mineralogy), also by foliation: whether they're foliated or non-foliated. If they show presence of shistosity or gneissosity (alignment of minerals ) , fissility and grunular appearance.
The descriptive term is foliated. They are said to exhibit foliation.
The two main groups of metamorphic rocks are foliated and non-foliated. Foliated metamorphic rocks show layering and parallel alignment of flat mineral crystals (ex. micas). The "banded texture in metamorphic rocks" is one of the specific kinds of foliated textures. It is referred to as gneissic banding. Essentially, this texture displays alternating layers of light and dark minerals. These rocks are called gneiss- the light bands form from quartz and feldspars, while the dark ones form from ferromagnesian minerals.
foliated metamorphic rocks. The alternating layers are caused by the alignment and segregation of minerals during the metamorphic process, resulting in a banded or layered appearance. Examples of foliated metamorphic rocks include gneiss, schist, and slate.
They are probably gneiss, a banded metamorphic rock.