heat and pressure.
Heat and pressure are the two key components.
sedimentary rocks and metamorphic
presence of platy mineral and orientation stress can give foliation to a metamorphic rocks.
they are a minarl.
sedimentary and metamorphic rocks
Metamorphic rocks are formed from igneous, sedimentary and older metamorphic rocks that are introduced to extreme temperature and pressure. Because of the extreme temperature and pressure, rocks go through a significant chemical or physical change, turing them into metamorphic rocks.
Listen to: Tangerine Dream - Thru Metamorphic Rocks
Slate and marble are examples of metamorphic rocks. Other metamorphic rocks include gneiss, schist, and quartzite. All metamorphic rocks are formed from other rock types.
The two main groups metamorphic rocks are classified are foliated rocks (meaning they have "bands"), and there are non-foliated rocks.
The two groups of metamorphic rock are foliated and nonfoliated. Metamorphic rocks can also be classified as contact and regional.
Those are two types of metamorphic rocks. Banded metamorphic rocks are when rocks layer into layers and they look like strips or Bands. Non banded is the opposite of banded
Heat and/or pressure.