Igneous+rocks

The defenition of Igneous is rock formed by the solidification of molten magma.

Igneous rocks are formed when a valcano erupts, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground.

Igneous rocks are made of cooled molton magma.

Igneous rock can be used for useful road building materials.

The other examples of Igneous rock are: pumice basalt gabbro diorite granite rhyolite obsidian scoria