Is Nepalese glass natural?

According to the energy information network, Nepalese glass is an artificial glass handicraft, not a natural gem. Nepal glass is a kind of colored glass made by dewaxing casting. The main raw materials are timely, lead oxide and various metal oxides. Nepalese glass is characterized by bright colors, various forms, high permeability, and strong national style and religious atmosphere. The history of stained glass in Nepal can be traced back to around 2000 BC, when people in the Indus Valley had mastered the technology of making glass. There are many kinds of colored glass in Nepal, such as colored glass beads, colored glass Buddha statues, colored glassware and colored glass ornaments. They are all handicrafts of the Nepalese people, and they are also characteristic cultures and tourist souvenirs of Nepal.