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Polishing of Crystal Glass, 19th Century

Grinding and polishing of crystal glass, 19th century. Glass polishing is a method of the fine grinding of glass by abrasives to produce smooth surfaces or for artistic purposes. Lead glass, commonly called "crystal", is a variety of glass in which lead replaces the calcium content of a typical potash glass. Lead glass is desirable owing to its decorative properties. Originally discovered by Englishman George Ravenscroft in 1674, the technique of adding lead oxide (between 10 and 30%) improved the appearance of the glass and made it easier to melt using sea-coal as a furnace fuel. This technique also increased "working period" making the glass easier to manipulate. From the 18th century, English lead glass became popular throughout Europe, and was ideally suited to the new taste for wheel-cut glass decoration perfected on the Continent owing to its relatively soft properties Towards the end of the 18th century, lead-crystal glass was being produced in France, Hungary, Germany, and Norway.
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Polishing of Crystal Glass, 19th Century
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Grinding and polishing of crystal glass, 19th century. Glass polishing is a method of the fine grinding of glass by abrasives to produce smooth surfaces or for artistic purposes. Lead glass, commonly called "crystal", is a variety of glass in which lead replaces the calcium content of a typical potash glass. Lead glass is desirable owing to its decorative properties. Originally discovered by Englishman George Ravenscroft in 1674, the technique of adding lead oxide (between 10 and 30%) improved the appearance of the glass and made it easier to melt using sea-coal as a furnace fuel. This technique also increased "working period" making the glass easier to manipulate. From the 18th century, English lead glass became popular throughout Europe, and was ideally suited to the new taste for wheel-cut glass decoration perfected on the Continent owing to its relatively soft properties Towards the end of the 18th century, lead-crystal glass was being produced in France, Hungary, Germany, and Norway.
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Tamaño imagen:
3332 x 4200 px | 40.0 MB
Tamaño impresión:
28.2 x 35.6 cm | 11.1 x 14.0 in (300 dpi)
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