C/6 Satin-mat ash glaze

Nepheline syenite 52
Dolomite 12
Ash Berhens 10
Zinc oxide 3
EPK 14
Gerstley borate 9
Total 100
Bentonite 1

Na2O 0.23 Al2O3 0.43 SiO2 1.62
K2O 0.07 B2O3 0.09 P2O5 0.02
MgO 0.18 TiO2 0.00
CaO 0.43 Fe2O3 0.01
ZnO 0.09

Alumina:Silica ratio is 1.00:3.75
Neutral:Acid ratio is 1.00:3.17
Alk:Neut:Acid ratio is 1.00:0.52:1.65

Expansion: 89.5 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3