potash lead silicate glass (Other Keyword)

DOCUMENT Citation Only Marilee Wood. Laure Dussubieux.

A number of potash lead silicate glass beads have been recovered from excavations at the 14th to 16th century Tanzanian site of Songo Mnara, a small but wealthy stone town on an island just south of Kilwa Kisiwani. LA-ICP-MS analysis has shown that two groups of Chinese beads are present, one that dates to the early 15th century, when Zheng He’s fleets visited the East Coast, and the other from around the turn of the 17th century when European glass beads began to be traded in that region. These...