Chinese New Year. In the decorative arts, a bird is rarely just a bird and a flower seldom represents a simple flower. These evocative symbols conjure different narratives, ideas, and emotions according to the context in which they are portrayed and the viewer who observes them. That is what makes them so powerful.
Glass is formed by heating sand to its melting point. Objects are  then either cast or blown to their desired shape and allowed to  cool slowly    Glass is made from â¦ a mixture of sand and other materials. Just  regular sand can be made into glass, but it must be heated to about  3,000 degrees Fahrenheit.
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.