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Gneiss is a metamorphic rock of variable composition with distinct banded layers. The layers or banding are called foliations, the result of the alignment of mineral grains in a direction perpendicular to the direction of pressure being exerted on the rock.

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Which kind of metamorphic rocks are massiv and lack banding?

nonfoliated rocks


What kind of metamorphic rocks are massive and lack banding?

Marble and quartzite are two examples of metamorphic rocks that lack banding and are massive. The lack of banding may indicate that the metamorphism may be due to a greater factor of heat than of pressure.


Which metamorphic rocks are massive and lacking banding?

Marble and quartzite are examples of massive metamorphic rocks that lack banding. Marble is formed from the metamorphism of limestone, while quartzite is formed from the metamorphism of sandstone. Both rocks typically have a uniform composition and lack the distinct layering or banding that is characteristic of other metamorphic rocks.


Which is a characteristic of all nonfoliated metamorphic rocks?

Lack of banding


What are foliated metamorphic rocks?

Foliated rocks have layers in them. We often refer to the layers as Banding.


What kind of rocks are non-foliated?

Certain metamorphic rocks that do not exhibit foliation (banding, lamellar texture) like quartzite and marble are described as non-foliated.


What is the texture term for metamorphic rocks which lack banding?

Non-foliated


What kind of metamorphic rock has its mineral grains arranged in bands or planes?

Metamorphic rock with mineral grains arranaged in bands or lamellar planes are called foliated metamorphic rocks.


Is a metamorphic rock with no banding a nonfoliated rock?

Yes, a metamorphic rock with no banding is classified as a nonfoliated rock. Nonfoliated rocks do not exhibit the layering or banding commonly seen in foliated rocks due to the recrystallization process they undergo during metamorphism.


What type of rock has fine banding?

A type of rock with fine banding is known as foliated rock, which includes metamorphic rocks like slate, phyllite, and schist. These rocks have distinct layered structures due to the alignment of minerals during the rock's formation under extreme heat and pressure. The banding in foliated rocks can range from fine to coarse, depending on the intensity of the metamorphic processes.


What is a kind of non foliated metamorphic rock?

Metamorphic rocks are rocks that have their grains arranged in parallel layers or bands. Foliated rocks are formed under great pressure and heat, and when they cool they have a banded grain pattern.


Very complex rocks families that exhibit the characteristic of banding due to extreme heat and or pressure are called?

metamorphic