Bass #45 Quintessence

Dolomite 10
Frit 3134 21
EPK 10
Kaolin (Calc.) 9
Nepheline syenite 5
Custer feldspar 30
Whiting 15
Total 100

Na2O 0.13 Al2O3 0.31 SiO2 1.63
K2O 0.08 B2O3 0.16 P2O5 0.00
MgO 0.13 TiO2 0.00
CaO 0.66 Fe2O3 0.00

Alumina:Silica ratio is 1.00:5.29
Neutral:Acid ratio is 1.00:3.48
Alk:Neut:Acid ratio is 1.00:0.47:1.64

Expansion: 86.5 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3