Physical and chemical properties of the ancient glass beads from the highland log-coffin culture and the lowland areas, Thailand: Considerations on their colors and technology
Seriwat Saminpanya, , Natamon Bavornyospiwat, Sunisa Homklin, Sumalee Danyutthapolchai, Pimtida Bupparenoo Abstract The ancient glass beads from a log coffin cave at Pang Mapha, Mae Hong Son as well as from Sa Kaeo, Thailand, were studied for their physical and chemical properties. The samples have an average specific gravity of 2.25, and an average refractive…