Understanding Ceramic Glazes
Titanium Dioxide in a cone 6 calcium matte glaze
There are multiple factors beyond just the recipe that make this cone 6 pottery glaze both attractive and functional.
An ordinary white mug: More difficult to make than you think!
Making a simple white stoneware mug, matte outside and glossy inside, is much more difficult than you might think. Many things can go wrong. https://digitalfire.com/picture/2829
Sometimes it is better to replace the base in a production glaze recipe
Sometimes it is better to replace the base in a production glaze recipe. Here we did it while also maintaining the chemistry.
A frit softens over a wide temperature range
Frits are man-made glass powders, they normally soften over a wide temperature range. However raw materials or minerals, often melt over a narrow range.
Sourcing Li2O from spodumene instead of lithium carbonate comes at a cost
This special-effect pottery glaze relies on lithium to give the high melt fluidity needed for crystal formation. But that Li2O can be sourced from spodumene also. https://digitalfire.com/picture/2301