Bass #3 Quintessence

Barium carbonate 6
Silica 13
Frit 3134 12
EPK 12
Lithium carbonate 12
Custer feldspar 32
Talc 6
Zinc oxide 7
Total 100

Bentonite 1

Na2O 0.08 Al2O3 0.22 SiO2 1.85
K2O 0.08 B2O3 0.09 P2O5 0.00
MgO 0.10 TiO2 0.00
CaO 0.12 Fe2O3 0.00
Li2O 0.36
MnO 0.00
ZnO 0.19
BaO 0.07

Alumina:Silica ratio is 1.00:8.28
Neutral:Acid ratio is 1.00:5.95
Alk:Neut:Acid ratio is 1.00:0.31:1.86

Expansion: 72.8 x 10e-7 per degree C
Oxides causing abnormal expansion: Li2O B2O3