Spectrum Raku Blue Topaz 885 Cone 10 Porcelain A popular glaze that produces

A popular glaze that produces beautiful results alone and when overlapped with other glazes

and becomes slightly darker

However most will maintain their color at higher temperatures

Medium blue

introducing pure white to the colors you are using

Spectrum Raku Blue Topaz 885 Cone 10 Porcelain A popular glaze that producesSpectrum's Raku glazes are all lead free and require a Raku firing process to achieve the results shown. Pieces are fired to 1750 degrees F (950 degrees C). While still red hot, the glazed piece should be transferred into a reduction bin; commonly a small sealable metal container containing organic material The bin should then be closed and the piece allowed to cool before removing and cleaning it. Raku firings typically produce very variable results,