lava
Is called igneous rock.
obsidian rock i think
i thing becaUSE THEY ARE COOLED
Igneous rock is formed from magma or lava that has cooled and solidified.
what type of rock is formed from magma and cooled on earth surface
Volcanic glass or obsidian is a quickly cooled igneous rock without a mineral crystal structure.
Is called igneous rock.
obsidian rock i think
Cooled lava is called a igneous rock once it has completely cooled and hardened. Some people just call it lava rock.
i thing becaUSE THEY ARE COOLED
The crystals within don't have as much time to grow when igneous rock is cooled more quickly as in extrusive igneous formation.
Cooled lava produces extrusive igneous rock.
Igneous rock is formed from solidified and cooled magma or lava.
An igneous rock with a glassy texture cooled from its' liquid state very quickly, an example of this would be obsidian, a volcanic glass.
A rock that is formed when magma cools is called a igneous rock.
In igneous rocks, large crystals mean that the rock cooled more slowly. Smaller crystals mean that the rock cooled more quickly.
Igneous rock is formed from magma or lava that has cooled and solidified.