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| Glass History
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| 2009-5-10
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| Venetial Glassm
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| The origins of glassmaking in the area of the Venetian lagoon date very far back in history, with the first reliable reports of ac......
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| 2009-4-28
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| Conclusion
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| Although this brief history comes to a close nearly 40 years ago, technological evolution naturally continues. Not yet ready to be......
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| Cisank>>News>>Lead crystal |
| Lead crystal |
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Lead crystal
The development of lead crystal has been attributed to the English glassmaker George Ravenscroft (1618-1681), who patented his new glass in 1674. He had been commissioned to find a substitute for the Venetian crystal produced in Murano and based on pure quartz sand and potash. By using higher proportions of lead oxide instead of potash, he succeeded in producing a brilliant glass with a high refractive index which was very well suited for deep cutting and engraving. | |
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