Posts: 1. Registered: â02-27-2012. I just purchased about a $100 dollars of Tibetan silver charms and murano beads that contain silver but after reading up on Tibetan silver and how it can contain lead and other poisonous substances, I now feel that I just threw that money away.osts: 1. Registered: â02-27-2012. I just purchased about a $100 dollars of Tibetan silver charms and murano beads that contain silver but after reading up on Tibetan silver and how it can contain lead and other poisonous substances, I now feel that I just threw that money away.