Derived principally from stibnite, its principle use is an opacifier in porcelain enamels.
Melting Point 650°C
It can be used in combination with rutile and titanium as a yellow body stain, and frequently is used in glass as a decolorizing agent and stabilizer in emerald green and ruby red compositions. When used in combination with lead glaze, it gives a color commonly called Naples Yellow. The brick industry employs antimony to bleach the surface of red-burning clay to a buff color to produce variegated coloration.
