Lava 08
Lava 08 : Rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface. Types: Aa: A dry form of lava resembling clinkers. Pahoehoe: Freely flowing lava. Pillow Lava: Lava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptions. Type of: Volcanic Rock: Extrusive igneous rock solidified near or on the surface of the Earth