This would be an extrusive igneous rock, which will have a smooth appearance because the mineral crystals are too small to see. If the lava is basic you will probably get basalt, and if it's acidic it's likely to form rhyolite.
Intrusive igneous rock.
Coarse large grained crystals.
Intrusive (Plutonic) Igneous Rock.
These are igneous rocks.
Intrusive rock. The prefix in-helps to remember that it is made inside the earth.
Intrusive igneous rock.
Extrusive igneous rocks such as basalt or rhyolite.
Coarse large grained crystals.
Intrusive (Plutonic) Igneous Rock.
Igneous rock is formed through the cooling and solidificatio of magma or lava.
Extrusive igneous rock is one of two different types of igneous rocks. The other kind is intrusive igneous rock. Intrusive igneous rock is formed when magma in Earth's lithosphere cools and hardens. Extrusive igneous rock is formed when lava on Earth's surface cools and hardens.
Intrusive Igneous Rock.
These are igneous rocks.
crater
Intrusive rock. The prefix in-helps to remember that it is made inside the earth.
Igneous rock is formed.
It forms an igneous rock. If it is within the Earth, then it is an intrusive igneous rock (e.g. granite) and if it is erupted onto Earth's surface then it is an extrusive igneous rock (e.g. basalt).