Written by the Fiveable Content Team โข Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated August 2025
Definition
Volcanic tuff is a type of rock formed from volcanic ash that has been compacted over time. It is characterized by its light weight and porous nature due to trapped gas bubbles during the volcanic eruption.