Perlite is a type of mineral that is used to make concrete and other building materials. It is a very lightweight material, which makes it a good choice for construction materials that need to be lightweight and easy to move.

  • The perlite was used to make the foundation of the building very lightweight.

Definition of perlite


An amorphous volcanic glass formed by the hydration of obsidian.


The lightweight insulating material and aggregate resulting from expanding perlite glass by heat.

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perlite Pronunciation in a video