Because they are part of this world. They were made from lave, from a volcano. So there fore they are imporant Igneous rock. I prove this fact because they say it's important in the question you asked. An a group of scientistes have proved my theory because they have these types of rocks in their labs. You could also ask a teahcer, maybe a science teacher, a math teacher won't know.
Igneous rocks
Both are igneous rocks.
Sedimentary rocks (such as sandstone and limestone), igneous rocks (such as granite and basalt), and metamorphic rocks (such as marble) are all used in masonry.
Probably not very much, igneous rocks are caused through the cooling of magma or larva and are very common on earth. Granite and Basalt are examples of igneous rocks.
Igneous rocks are formed from the cooling and solidifying of magma. The resulting rock can be instrusive (magma cooling within the crust) and extrusive (lava cooling on the surface). The most common kind of rocks are Granite (intrusive) and Basalt (extrusive).
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
Igneous rocks
They are all igneous rocks.
Basalt and granite are the most common types of rocks that make up igneous rocks. Basalt is a fine-grained volcanic rock, while granite is a coarse-grained intrusive rock.
Igneous, examples include Granite and Basalt
Both are igneous rocks.
Three types of igneous rocks are basalt, granite, and obsidian. Basalt is a dark-colored fine-grained rock, granite is a light-colored coarse-grained rock, and obsidian is a natural glass formed from rapidly cooled lava.
Sandstone is the odd one out as it is a sedimentary rock, as opposed to granite and basalt which are respectively felsic and mafic igneous rocks.
some igneus rocks are Granite,Basalt,Pumice,Obidan,and Rhyolit.
Basalt and pumice.
Commonly basalt, a volcanic; or granite.
Examples of igneous rocks include granite, basalt, and pumice. Granite forms from the slow cooling of magma deep within the Earth's crust, while basalt is associated with volcanic activity and forms from rapidly cooled lava. Pumice is a light-colored and porous rock that is often ejected during explosive volcanic eruptions.