Perhaps you did not know it, but this mineral is the main component of the sand where we lie down to sunbathe every summer. From the chemical viewpoint, it is silicon dioxide.
Silica is a perfect component for cosmetics as a delicate exfoliating agent: in fact, thanks to the small size of its granules, it acts in depth but it has also a smoothing power, which eliminates impurities without being aggressive for the skin.