This document discusses Bhasma, a type of Ayurvedic medicine prepared using metals and minerals. It provides background on Bhasma and describes some common types used in Ayurveda like Tamra Bhasma (copper), Abhraka Bhasma (mica), Lauha Bhasma (iron), and Naga Bhasma (lead). The traditional process for making Bhasma is described which involves steps like purification, grinding with herbs, and high-temperature calcination. The need for standardization and modern analytical techniques to characterize Bhasmas is discussed, as preparation methods vary and quality can be uncertain without validation. Traditional tests used to evaluate Bhasmas are outlined, but their accuracy