C/6 Clear ash glaze

Custer feldspar 36
Lithium carbonate 5
EPK 16
Ash Berhens 22
Silica 21

Bentonite 2

Na2O 0.06 Al2O3 0.45 SiO2 3.03
K2O 0.14 P2O5 0.04
MgO 0.04 TiO2 0.01
CaO 0.55 Fe2O3 0.01
Li2O 0.20

Alumina:Silica ratio is 1.00:6.71
Neutral:Acid ratio is 1.00:6.85
Alk:Neut:Acid ratio is 1.00:0.45:3.09

Expansion: 72.0 x 10e-7 per degree C
Oxides causing abnormal expansion: Li2O