6713/31 Glossy gray, blue and brown

A glaze based on zinc and lithium. Spray the glaze thinner near the bottom of the pot, or it will run a lot. 1260oC with 1/2-3/4 hour at the top temperature. Does not need a slow cooling.
glaze 6713/31, bottom on vase

bottom of dome-shaped vase
potash feldspar NR 29,00
quarts (flint) 34,50
dolomite 3,60
zinc oxide 18,50
barium carbonate 4,14
china clay 3,31
lithium carbonate 6,90
rutile 1,38
red ferric oxide 1,24
manganese carbonate 2,21
cobalt carbonate 0,22