smalt
noun
- deep-blue glass prepared from silica, potash, and oxide of cobalt: used, in pulverized form, as a pigment
- pigment made in this way
- its deep-blue color
See smalt in American Heritage Dictionary 4
(smôlt)
noun A deep blue paint and ceramic pigment produced by pulverizing a glass made of silica, potash, and cobalt oxide.
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