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Translate Lead glass commonly called crystal is a variety of glass in which lead replaces the calcium content of a typical potash glass. Lead glass contains typically 1840 lead oxide while modern lead crystal historically also known as flint glass due to the original silica source contains a minimum of 24 PbO. Lead glass is often desirable for a variety of uses due to its clarity. The term lead crystal is technically not an accurate term to describe lead glass
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