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Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]
The presence of lead in crystal softens the glass and makes it more accessible for cutting and engraving. Lead increases the weight of the glass and causes the glass to disperse light more. Glass can contain up to 40% lead, if maximum hardness is desired. On the other hand, crystal can contain less than 24% lead if it has a high proportion of ...
Cut glass vase. Waterford Crystal is a manufacturer of lead glass or "crystal", especially in cut glass, named after the city of Waterford, Ireland.In January 2009, the main Waterford Crystal manufacturing base on the edge of Waterford was closed due to the insolvency of Waterford Wedgwood PLC, and in June 2010, Waterford Crystal relocated almost back to the roots of glass-making in the city ...
In 1983 a third, highly modern lead crystal plant was founded in Weiden in der Oberpfalz. In 2004 the Nachtmann company was taken over by its rival, the Austrian crystal maker Riedel which now carries its name and brand. As of 2011 the website associated with its name is active and continues sale of fine glass under the Riedel umbrella.
Ajka Crystal exports 90% of the factory's total production – both in tableware (stemware, tumblers etc...) and in giftware (vases, bowls) – for brands such as Wedgwood, Tiffany's, Rosenthal, Waterford Crystal, Polo Ralph Lauren, Christian Dior, Moser and other high-end French crystal manufacturers. [3] [4] Ajka Crystal is located in Ajka ...
During the late 18th century Richard Champion, a Bristol merchant and potter, making Bristol porcelain, was working with a chemist, William Cookworthy. [1] Cookworthy began a search for good quality cobalt oxide to give the blue glaze decoration on the white porcelain and obtained exclusive import rights to all the cobalt oxide from the Royal Saxon Cobalt Works in Saxony. [2]