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Metamorphic rocks with a layered or banded look are referred to as foliated.
Geologist classify metamorphic rocks according to the arrangement of the grains that make up the rocks and also it either being foliated or nonfoliated
crystals
arrangement of mineral grains within the rock
Metamorphic rocks are either created at great depth, or at contact zones with magmatic intrusions.
Metamorphic rock with mineral grains arranaged in bands or lamellar planes are called foliated metamorphic rocks.
Metamorphic rocks with a layered or banded look are referred to as foliated.
Geologist classify metamorphic rocks according to the arrangement of the grains that make up the rocks and also it either being foliated or nonfoliated
Metamorphic rock with mineral grains arranaged in bands or lamellar planes are called foliated metamorphic rocks.
Metamorphic rocks
Geologists classify metamorphic rocks by the arrangements of the grains that make up the rocks.
Metamorphic rocks have their grains arranged in parallel layers or bands that are said to be foliated.
mineral grains arranging into layers.
metamorphic rock
They are called foliated metamorphic rocks, and are said to exhibit foliation.
In subject of metamorphic rocks, to be foliated is to have their grains arranged in parallel layers or bands. Non foliated is when the rocks' grains are made randomly in no arranged pattern.Reference:Prentice Hall Earth Science 2009
Metamorphic rock with mineral grains arranaged in bands or lamellar planes are called foliated metamorphic rocks.