C/6 Semi-opaque ash glaze

Custer feldspar 20
Nepheline syenite 20
Ash Berhens 40
Ball clay 10
Talc 5
Dolomite 5
Total 100
Bentonite 1

Na2O 0.09 Al2O3 0.28 SiO2 1.38
K2O 0.09 P2O5 0.05
MgO 0.16 TiO2 0.01
CaO 0.67 Fe2O3 0.01
MnO 0.00

Alumina:Silica ratio is 1.00:4.86
Neutral:Acid ratio is 1.00:5.09
Alk:Neut:Acid ratio is 1.00:0.28:1.45

Expansion: 90.1 x 10e-7 per degree C