Any rock that erupted on (lava) or within the Earth or crystallized from molten rock (magma). Such rock would fall into two categories: Intrusive (crystallized within the Earth), granite, gabbro, diorite, pegmatite, peridotite and extrusive (erupted and crystallized on the surface) rhyolite, andesite, obsidian, basalt, tuff and pumice.
An intrusive igneous rock.
intrusive
Lava is an example of igneous rock. It forms when molten rock from beneath the Earth's surface erupts onto the surface and cools and solidifies.
Igneous rocks all come from molten material (magma or lava) that solidifies and crystallizes. This can happen either beneath the Earth's surface (intrusive igneous rocks) or on the surface (extrusive igneous rocks).
Igneous rock is formed when magma cools and becomes solid.
An intrusive igneous rock.
It is an example of extrusive igneous rock.
Igneous means that it usually comes from a volcano. For example, igneous rock is rock from a volcano
No. Gneiss is a metamorphic rock.
Granite is actually high in silica, which is why it is considered a felsic igneous rock. An example of an igneous rock low in silica is basalt, which is mafic in composition and contains less silica than granite.
An intrusive igneous rock.
granite
coal
intrusive
igneous rock
It is an example of extrusive igneous rock.
Extrusive (volcanic) igneous rock. An example is Basalt.