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A pendant made from modern dichroic glass. Dichroic glass is glass which can display multiple different colors depending on lighting conditions.. One dichroic material is a modern composite non-translucent glass that is produced by stacking layers of metal oxides which give the glass shifting colors depending on the angle of view, causing an array of colors to be displayed as an example of ...
Lampworked dichroic glass bead showing thin film application Furnace glass beads. A variant of the wound glass bead making technique, and a labor-intensive one, is what is traditionally called lampworking. In the Venetian industry, where very large quantities of beads were produced in the 19th century for the African trade, the core of a ...
The color is caused by the size and dispersion of gold particles. Ruby gold glass is usually made of lead glass with added tin. Silver compounds such as silver nitrate and silver halides can produce a range of colors from orange-red to yellow. The way the glass is heated and cooled can significantly affect the colors produced by these compounds.
Dichroic glass is a very popular choice with glass artists today, especially so when creating marbles, because of its properties of having more than one color and when viewed from different angles, has a sparkle effect, much like a cut gemstone. Dichroic glass is actually a product created by the space industry, and was first used as an ...
The glass may have been initially made in a large block of standard clear glass, perhaps in Egypt or Palestine, which both exported great quantities of glass for forming, and sometimes colouring, elsewhere. The thick "blank" dichroic vessel was probably made by one specialist workshop and passed to another consisting of specialist cutters.
Powder glass beads are made from finely ground glass, the main source being broken and unusable bottles and a great variety of other scrap glasses. Special glasses such as old cobalt medicine bottles, cold cream jars, and many other types of glasses from plates, ashtrays, window panes - to name only a few - are occasionally bought new, just for ...