Igneous rock is formed from cooled melted rock. It can be further classified as intrusive (formed below the earth's surface) or extrusive (formed on the earth's surface). Examples include granite, basalt, and obsidian.
Basalt.
Any rock that becomes molten and then solidifies underground will be classified as an intrusive igneous rock.
rock is melted to form molten rock, then as the lava hardens, it forms any type of igneous rock
Granite is formed from molten rock that has cooled. Since it forms underground, however, the molten rock that it forms from is called magma rather than lava.
Igneous rock is formed from the cooling of magma or lava.
Basalt.
Igneous rock is the name for the types of rock formed when melted rock hardens.
It can be melted, but would form the same type of rock when it was cooled and hardened again, the structure depending on how it cooled and how fast.
its an igneous rock
igneous rock
pumice
Any rock that becomes molten and then solidifies underground will be classified as an intrusive igneous rock.
metamorphic
obsidian
rock is melted to form molten rock, then as the lava hardens, it forms any type of igneous rock
it is an extrusive rock
Igneous rock. the definition of igneous: Formed by solidification from a molten state.