, 2020). Such raises in each peak absorption cross part and width in the 450 nm absorption band more than linearly increase the strength with the chromophore with concentration. Other chromophores in natural corundum do not clearly show these variations and therefore exhibit a constant toughness with concentration. Clarity: Clarity https://bookmarkstime.com/story18427631/the-best-side-of-sri-lanka-yellow-sapphire