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In addition, beads can be fused from sheet glass or using ground glass. Modern Ghana has an industry in beads molded from powdered glass. Also in Africa, Kiffa beads are made in Mauritania, historically by women, using powdered glass that the bead maker usually grinds from commercially available glass seed beads and recycled glass.
The production of beads from imported glass shards, cullet (scraps) and undesired glass beads has a lively presence in the history of Sub-Saharan Africa. Imported glass was either formed by melting such imported glass, potentially adding desired colorants, and then shaping the melt into a bead form; or, by grinding down the imported glass to ...
From its Indian origins, glass beads spread as far as Africa and Japan, sailing with the monsoon winds, hence their being referred to as 'trade wind beads'. [19] The most common compositional type, representing 40% of the glass finds for the region, is known as mineral soda-alumina glass [ 20 ] and is found from the 4th century BC to the 16th ...
The term Kiffa bead, named after one of the old bead making centres of Kiffa in Mauritania, was coined by United States bead collectors during the 1980s. According to Peter Francis, Jr., the making of powder glass beads in West Africa may date back a few hundred years, and to possibly 1200 CE in Mauritania.
The term rosetta first appeared in the inventory of the Barovier Glass works in Murano, in 1496, in context with beads as well as with other glass objects. Venetian chevron beads are drawn beads, made from glass canes, which are shaped using specifically constructed star moulds. The first chevron beads were made towards the end of the 15th ...
Glass databases are a collection of glass compositions, glass properties, glass models, associated trademark names, patents etc. These data were collected from publications in scientific papers and patents, from personal communication with scientists and engineers, and other relevant sources.
Prince Rupert's drops. Prince Rupert's drops (also known as Dutch tears or Batavian tears) [1] [2] are toughened glass beads created by dripping molten glass into cold water, which causes it to solidify into a tadpole-shaped droplet with a long, thin tail.
Group of 16 amulets strung as a necklace, in the typical bright faience blue, Late Period It is called "Egyptian faience" to distinguish it from faience, the tin-glazed pottery whose name came from Faenza in northern Italy, [7] a center of maiolica (one type of faience) production in the late Middle Ages.
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related to: potters glass beads data sheet