Australian dolomite is no longer available. This is Dolocron - a replacement from the USA, Please test before substitution.
Dolocron is a natural dolomite which combines calcium and magnesium carbonates.
Dolomite is generally used to produce silky matt glazes.
A very plastic magnesium clay containing colloidal matter which in small amounts lends plasticity to a clay body. Also used as a suspending agent in glazes.