C/6 Clear ash glaze

Custer feldspar 35
Ash Berhens 32
EPK 13
Silica 20
Total 100

Na2O 0.06 Al2O3 0.42 SiO2 2.81
K2O 0.14 P2O5 0.06
MgO 0.05 TiO2 0.01
CaO 0.75 Fe2O3 0.02

Alumina:Silica ratio is 1.00:6.72
Neutral:Acid ratio is 1.00:6.92
Alk:Neut:Acid ratio is 1.00:0.42:2.89

Expansion: 76.6 x 10e-7 per degree C