https://volcanodb.com/types-of-lava
Types of Lava: Pahoehoe, Aa, Blocky & Pillow Lava Explained (2026) | VolcanoDB
The 4 main types of lava flow — pahoehoe (smooth), aa (rough), blocky (angular), and pillow (underwater). How silica content determines viscosity, speed, and...
types of lavapahoehoeblockypillowexplained