In ancient times, our ancestors discovered that certain“minerals” had healing properties. The ancients also included these healing “minerals” in the category of materia medica. In Shen Nong Ben Cao Jing (Shennong’s Classic of the Materia Medica), the earliest surviving treatise on Chinese materia medica, a total of 365 materia medica are documented, including 46 types of mineral-based materia medica.