Lignite is a kind of coal (brown coal).
Rock that forms from molten rock that cools and solidifies is called igneous rock.
Igneous rock is formed when magma cools and becomes solid.
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
It is called an intrusive igneous rock.
Cooling and solidifying magma turns into igneous rock.
Lignite is a Igneous Rock
organic
Rock that forms from molten rock that cools and solidifies is called igneous rock.
Igneous rock is formed.
Igneous rock is formed when magma cools and becomes solid.
an igneous rock.
Obsidian is an igneous rock.
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
It is called an intrusive igneous rock.
Cooling and solidifying magma turns into igneous rock.
Igneous Rock
Lignite, bituminous coal.