They are very hard so they could used for road building materials.
igneous rocks
Rhyolititcen rocks.
Igneous rocks are formed by the solidification of molten materials.
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
Yes. Volcanic rocks are extrusive igneous rocks.
Igneous rocks
No, igneous rocks are harder than sedimentary rocks on average.
extrusive igneous rocks =/
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Igneous rocks can be transformed not made but i think you are asking what types of rocks are igneous rocks well any rock that had once been lava/molten is an igneous rock and lava/molten comes from volcano.You might want to search on Google-types of igneous rocks or how can igneous rocks be transformed. From Ayushi:)
Yes. More exactly, intrusive igneous rocks.
yes, the orange rocks on mars are called igneous rocks!