Crystal falls into the 3 main categories. Fine Crystal or Crystalline is made from a glass mixture that contains 6% - 10% lead oxide. Lead Crystal is made from a glass mixture that contains 10% - 24% lead oxide and Full Lead Crystal is made from a glass mixture that contains 24% lead oxide or more. For the most part, crystal by European standards regards 24% lead bearing glass as crystal wholesale crystal jewelry.
only certain types of glass can be properly identified as crystal. outside this rather broad statement, there are not any ironclad rules that are universally invoked as part of the process of defining what constitutes crystal.gemstone jewelry Across the globe, there are different standards that are employed in various countries around the world that determine if the quality if the item should be identified as glass. Even within some countries, the qualities that must be present The lead content of glass is usually a determinant in the classification of finished goods as either crystal or glass. glass items that have more than four percent but less than ten percent .
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