, 2020). These types of increases in both peak absorption cross part and width from the 450 nm absorption band over linearly improve the energy on the chromophore with concentration. Other chromophores in natural corundum will not present these variations and thus show a continuing power with concentration. Pukhraj stones https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share