Cone 4 #3 Satinée/Texturée

Kona F-4 47
Barium carbonate 14
Whiting 12
Gerstley borate 12
Silica 10
Zinc oxide (Calc.) 5
Total 100

Na2O 0.15 Al2O3 0.22 SiO2 1.73
K2O 0.06 B2O3 0.12 Fe2O3 0.00
MgO 0.03
CaO 0.44
ZnO 0.15
BaO 0.17

Alumina:Silica ratio is 1.00:7.75
Neutral:Acid ratio is 1.00:5.00
Alk:Neut:Acid ratio is 1.00:0.35:1.73

Expansion: 88.8 x 10e-7 per degree C
Oxides causing abnormal expansion:
B2O3