Glasswork - the Scientia Review

All processes begin with an annealed, or
cooled, colorless glass object. Flashed glass is colored when
a clear glass object is dipped into molten colored glass to be
coated in a thin layer. Cased glass also has layers of colored
glass added on, but usually multiple layers of different colors
are applied. Then areas of the glass are cut into to reveal
different colors. Stained glass is created when the glass
object is coated with a chemical stain. Then the glass is fired
and the color of the chemical is developed by the heat.
An elaborate
example of cased
glass in which
the blue glass
was chiseled and
cut away in a
pattern to reveal
the white.
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