Schist: meaning, definitions and examples

Schist is best used when talking about a type of metamorphic rock with a shiny surface and easily split into thin layers. It's common in discussions about geology or construction materials.

• The walls of the cabin were built from schist.
• Schist often contains large amounts of mica and other minerals.

Metamorphic rock is a general term used to describe rocks that have undergone transformation due to extreme heat and pressure. This term is commonly used in educational materials, scientific discussions, and when not specifying a particular type of metamorphic rock.

• Marble is a type of metamorphic rock.
• Metamorphic rocks form deep underground over millions of years.

Gneiss is suitable for describing a banded or foliated metamorphic rock that forms from high-pressure and high-temperature conditions. It's often mentioned in geological studies or when talking about building stones.

• The countertop is made from polished gneiss.
• Gneiss is frequently found in mountainous regions.

Slate is appropriate for conversations about a fine-grained, foliated metamorphic rock that splits into thin, durable sheets. It is often mentioned in the context of roofing materials, flooring, or traditional writing surfaces.

• The old school classroom has a slate blackboard.
• Many historical buildings have roofs made from slate.