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glass beadmaking : ウィキペディア英語版 | glass beadmaking
The technology for glass beadmaking is among the oldest human arts, dating back 3,000 years (Dubin, 1987). Glass beads have been dated back to at least Roman times. Perhaps the earliest glass-like beads were Egyptian faience beads, a form of clay bead with a self-forming vitreous coating. Glass beads are significant in archaeology because the presence of glass beads often indicate that there was trade and that the beadmaking technology was being spread. In addition, the composition of the glass beads could be analyzed and help archaeologists understand the sources of the beads.〔Glover, I. C., & Bellina, B. (2011). Ban Don Ta Phet and Khao Sam Kaeo: The Earliest Indian Contacts Re-assessed. Early Interactions Between South and Southeast Asia: Reflections on Cross-cultural Exchange〕 ==Common types of glass bead manufacture== Glass beads are usually categorized by the method used to manipulate the glass - wound beads, drawn beads, and molded beads. There are composites, such as millefiori beads, where cross-sections of a drawn glass cane are applied to a wound glass core. A very minor industry in blown glass beads also existed in 19th-century Venice and France.
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