Asbestosis is a lung disease caused by inhaling asbestos fibers. In addition, fiber from a form of asbestos called chrysotile is considered to be a human carcinogen by the U.S. Department of Health and Human Services. Chrysotile's composition is $26.31 \%$ magnesium, $20.20 \%$ silicon, and $1.45 \%$ hydrogen with the remainder of the mass as oxygen. Determine the empirical formula of chrysotile.