Silicarelated diseases in the modern world Hoy 2020
Silica (also known as silicon dioxide, SiO 2) is a widely abundant mineral compound. 2 It accounts for 59% of the earth''s crust and is the main constituent of over 95% of rocks. 3, 4 Silica occurs in crystalline and noncrystalline (amorphous) forms. 5 Amorphous forms are generally considered to be of low toxicity; however, there are limited data, especially related to amorphous silica