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What type of metamorphic rock is composed of mineral grains arranged in parallel layers?
Foliated.
When metamorphic rock has banded texture with minerals grains that are arranged in layers it is called?
Metamorphic rocks with a layered or banded look are referred to as foliated.
Metamorphic rocks such as marble and quartzite are said to be what because their mineral grains are not arranged in parallel layers or bands?
Metamorphic rocks such as marble and quartzite are said to be non-foliated because their mineral grains are not arranged in parallel layers or bands like in foliated rocks such as slate or schist. This lack of alignment gives non-foliated rocks a more uniform texture and appearance.
What is a metamorphic rock that has parallel alignment of mineral grains?
Schist is a metamorphic rock that exhibits parallel alignment of mineral grains, giving it a foliated appearance. This alignment is typically a result of regional metamorphism where intense pressure and temperature conditions cause the minerals to recrystallize in a preferred orientation.
What is the parallel alignment of platy grains in a rock called?
The parallel alignment of platy grains in a rock is called foliation. Foliation is commonly seen in metamorphic rocks where minerals align in a preferred orientation due to pressure and temperature changes during deformation.
What is a rock with long flat mineral grains?
A rock with long flat mineral grains is likely to be schist. Schist is a metamorphic rock characterized by its foliated texture, with mineral grains aligned in a parallel fashion, giving it a distinct layered appearance.
What are metamorphic rocks with grains arranged randomly said to be?
Metamorphic rocks with grains arranged randomly are said to be non-foliated. This means they do not have a layered or banded structure like foliated metamorphic rocks. Examples include marble and quartzite.
When mineral grains in a metamorphic rock do not form layers the rock has what texture?
no texture
If a metamorphic rock has grains arranged in parallel layers or bands what is the rock probably displaying?
Generically it is displaying a metamorphic fabric, specifically a schistosity. If the fabric is well developed it could also be displaying planes of cleavage.
What kind of metamorphic rock has its mineral grains arranged in planes of bands?
Metamorphic rock with mineral grains arranaged in bands or lamellar planes are called foliated metamorphic rocks.
Rock with grains arranged in parallel layers?
Foliated rocks, and in particular: * Shale * Schist * Gneiss
When minerals grains flatten and line up in layers a metamorphic rocks has a texture?
A schistose texture.
