Mineral composition of the magma, Rate of cooling of the magma, Temperature of the magma, Presence of volatiles and Amount of water present in the magma.
Metamorphic. By contrast, igneous rocks form from lava or magma, and sedimentary rock form from sediment. Those things are formed from previous rocks, but constitute intermediate stages: igneous and sedimentary rocks are formed indirectly from previous rocks.
Sedimentary Rocks. 75% of rocks exposed to the surface are sedimentary.
Igneous rock was the first rock to cool on the surface.
What type of rock is formed from magma that hardens underground?
That entirely depends on what type of magma it is and under what conditions it crystallizes. If you are looking for a general rock type, the answer is igneous, but that's very general.
Igneous rock is formed when magma cools and becomes solid.
Igneous rock is formed when lava or magma cools and solidifies. This process can happen either above ground (extrusive igneous rock) or below ground (intrusive igneous rock).
Extrusive igneous rock is formed from cooling lava.
igneous rock
Basalt is a common fine-grained rock that forms from the cooling and solidification of lava. It has a dense, dark color and can often be found in volcanic regions.
Igneous rock.
The Extrusive igneous rock is formed on the earths surface while the Intrusive igneous rock is formed within or inside the earths crust.
A rock that is formed when magma cools is called a igneous rock.
igneous
Igneous
igneous rock jacob did this
An igneous rock is formed when magma cools and hardens. Some examples of igneous rocks are pumice and obsidian.