Bass #16 Quintessence

Frit 3134 3
EPK 10
Kaolin (Clac.) 7
Custer feldspar 45
Whiting 11
Wollastonite 14
Zinc oxide 10
Total 100

Na2O 0.06 Al2O3 0.31 SiO2 1.78
K2O 0.11 B2O3 0.02 P2O5 0.00
MgO 0.00 TiO2 0.00
CaO 0.55 Fe2O3 0.00
ZnO 0.28

Alumina:Silica ratio is 1.00:5.67
Neutral:Acid ratio is 1.00:5.31
Alk:Neut:Acid ratio is 1.00:0.34:1.79

Expansion: 83.8 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3