, 2020). These types of raises in the two peak absorption cross portion and width on the 450 nm absorption band over linearly improve the toughness of the chromophore with focus. Other chromophores in natural corundum do not show these modifications and so show a continuing strength with focus. Marital https://todaybookmarks.com/story18153627/detailed-notes-on-buy-sri-lanka-pukhraj-in-india