What are the materials used in making crown and flint?
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According to Meyer-Arendt, about 95% of all glasses are of the "soda-lime" type, containing silicon dioxide (silica), Na2O (soda), and CaO (lime). Crown glass is a soda-lime-silica composite. Flint glasses contain 45-65% lead oxide - they are high-density, high-dispersion, high-refractive-index glasses.
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Answer:
According to Meyer-Arendt, about 95% of all glasses are of the "soda-lime" type, containing silicon dioxide (silica), Na2O (soda), and CaO (lime). Crown glass is a soda-lime-silica composite. Flint glasses contain 45-65% lead oxide - they are high-density, high-dispersion, high-refractive-index glasses.
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