DOLOMIE
DOLOMY
This doubled carbonate of calcium and magnesium is widely used as a flux in glazes, also used in dolomitic earthenware.
Natural source of calcium and magnesium.
Useful as a secondary flux in stoneware glazes, although in combination with other fluxes it can be effective down to 1060°C.
Above 5% it begins to opacify and will eventually produce a matt glaze.