The crimson-purple shade is due to absorption by the bigger particles while the inexperienced coloration is attributed to the light scattering by colloidal dispersions of Ag nanoparticles that has a dimension > 40 nm. The Lycurgus cup is regarded as among the list of oldest synthetic nanomaterials [1]. An analogous https://www.directivepublications.org/journal-of-applied-nanoscience/