Igneous Rocks Examples ( Types of Rocks )

Igneous rocks are created when molten rock cools either on the earth's surface or slowly inside the earth.

Rocks that are created from magma that reaches the surface are called intrusive or volcanic igneous rocks.
Rocks that are created inside the earth are called plutonic or intrusive rocks.
In this video provide video and information about,
obsidian
Granite
Basalt
Scoria
Rhyolite