Glasswork - the Scientia Review
Glasswork - the Scientia Review
Glasswork - the Scientia Review
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Lowered viscosity and working temperature rendered<br />
lead as an advantageous addition to glass; period technology could<br />
not provide high temperatures or function well with excessively<br />
hot material. George Ravenscroft revolutionized <strong>the</strong> glassmaking<br />
trade by using flint in large scale glass production. Eventually,<br />
his product utilized sand ra<strong>the</strong>r than flint and contained a<br />
significant concentration of lead oxide. The result was <strong>the</strong> clear<br />
lead crystal which now typifies leaded glass. He received several<br />
patents for his work, and provided an alternative to <strong>the</strong> shoddy<br />
material supplied by Italy.<br />
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