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Glass coloring and color marking may be obtained in several ways. by the addition of coloring ions, [1] [2] by precipitation of nanometer-sized colloids (so-called striking glasses [1] such as "gold ruby" [3] or red "selenium ruby"), [2] Ancient Roman enamelled glass, 1st century, Treasure of Begram; by colored inclusions (as in milk glass and ...
A second method, sometimes used in some areas of windows, is flashed glass, a thin coating of coloured glass fused to colourless glass (or coloured glass, to produce a different colour). In medieval glass flashing was especially used for reds, as glass made with gold compounds was very expensive and tended to be too deep in colour to use at ...
Originally, only beige, black, and white colors were available. But by the 1930s, new manufacturing methods could make pigmented structure glass translucent, and more than 30 colors were available. [2] In time, even agate- and marble-like color patterns were available. [11] Black structural glass was sometimes silvered, to give it a reflective ...
Cobalt glass for decoration. Cobalt glass—known as "smalt" when ground as a pigment—is a deep blue coloured glass prepared by including a cobalt compound, typically cobalt oxide or cobalt carbonate, in a glass melt. Cobalt is a very intense colouring agent and very little is required to show a noticeable amount of colour.
While McKee Glass was the first to produce tableware in this jadeite color glass, the history of this color dates back into the 19th century. [citation needed] Other U.S. and European glassmakers produced items in this color. Examples can be seen from various makers such as Tarentum Glass, Challinor Taylor, and Portieux Vallerysthal of France.
This researcher had conducted studies into ways to color glass and now, promoted to assistant director, he developed the first multicolored paperweights made of crystal. [12] The range of manufactured products using watermarked glass engraved with a B was a great success in France and on the export market between 1846 and 1895. [12]