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.
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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.
Igneous rocks, non-foliated metamorphic rocks, and evaporites do not have layers.
Metamorphic rocks, like slate or quartizite, or even diamonds.
a rock with metamorphic minerals but no foliation or lineation
These will be metamorphic rocks:Regional metamorphosis occurs under heat and pressureThermal/contact metamorphosis occurs under heat only
nonfoliated rocks
The type of metamorphic rock would be classified as a nonfoliated metamorphic rock, like quartzite and marble.
Certain metamorphic rocks that do not exhibit foliation (banding, lamellar texture) like quartzite and marble are described as non-foliated.
Metamorphic rock with mineral grains arranaged in bands or lamellar planes are called foliated metamorphic rocks.
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.
Metamorphic rocks are formed from sedimentary rocks.
Metamorphic rocks are rocks that have "morphed" into another kind of rock. These rocks were once igneous or sedimentary rocks.
All sedimentary and igneous rocks
In Igneous, Metamorphic, and Sedimentary rocks.
metamorphic
Igneous rocks, non-foliated metamorphic rocks, and evaporites do not have layers.
Sedimentary and metamorphic rocks.