Igneous rock is very important to modern society and society back then. for example, ground up pumice stone is sometimes added to toothpaste to act as an abrasive material that scrubs your teeth clean.
Step-by-step explanation: Igneous rock is also a group of many different rocks such as, granite, pumice, felsic and mafic rocks, basalt, perlite, rhyolite, obsidian, etc
