Tyler’s Geology

Igneous Igneous rocks are formed by volcanoes. When the lava cools, it forms rock. A common igneous rock is obsidian. Obsidian is formed from a lava called rhyolite lava. Rhyolite lava is a thick form of lava that has lots of silica inside of it, which causes it to be less heavy than other lava.… Read more

Welcome to Tyler’s Geology! In this blog I will share facts and photos of rocks. I hope you have fun!