, 2020). These boosts in both of those peak absorption cross area and width of your 450 nm absorption band more than linearly boost the strength of your chromophore with concentration. Other chromophores in natural corundum never display these modifications and thus show a constant toughness with concentration. As indicated https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share