The pink-purple coloration is a result of the absorption by The larger particles whilst the inexperienced coloration is attributed to the light scattering by colloidal dispersions of Ag nanoparticles using a sizing > 40 nm. The Lycurgus cup is regarded as one of the oldest synthetic nanomaterials [1]. The same https://www.directivepublications.org/journal-of-applied-nanoscience/