C/6 Satin/Shiny ash glaze

Custer feldspar 14
Silica 28
Zinc oxide 11.5
Ash Berhens 19
Ball clay 7.5
Total 100
Bentonite 2

Na2O 0.03 Al2O3 0.20 SiO2 2.34
K2O 0.07 P2O5 0.03
MgO 0.03 TiO2 0.01
CaO 0.46 Fe2O3 0.01
ZnO 0.41

Alumina:Silica ratio is 1.00:11.53
Neutral:Acid ratio is 1.00:11.80
Alk:Neut:Acid ratio is 1.00:0.20:2.39

Expansion: 70.1 x 10e-7 per degree C