Bass #57 Quintessence

Silica 6
Frit 3134 36
EPK 13
Custer feldspar 35
Whiting 10
Total 100

Na2O 0.22 Al2O3 0.31 SiO2 2.54
K2O 0.11 B2O3 0.34 P2O5 0.00
MgO 0.00 TiO2 0.00
CaO 0.67 Fe2O3 0.00

Alumina:Silica ratio is 1.00:8.18
Neutral:Acid ratio is 1.00:3.88
Alk:Neut:Acid ratio is 1.00:0.66:2.54

Expansion: 83.2 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3