White V.O. #3

Nepheline syenite 51
Frit 3134 6
Dolomite 6
Talc 15
EPK 4
Silica 18
Total 100

Na2O 6.4% Al2O3 14.2% SiO2 64.5%
K2O 2.6% B2O3 1.4% P2O5 0.0%
MgO 6.1% TiO2 0.0%
CaO 4.7% Fe2O3 0.1%

Volatiles:
CO2 3.0%
Other 1.4%

Loss On Ignition: 4.2%

Expansion: 74.0 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3

Na2O 0.28 Al2O3 0.38 SiO2 2.94
K2O 0.08 B2O3 0.06 P2O5 0.00
MgO 0.41 TiO2 0.00
CaO 0.23 Fe2O3 0.00

Alumina:Silica ratio is 1.00:7.71
Neutral:Acid ratio is 1.00:6.71
Alk:Neut:Acid ratio is 1.00:0.44:2.94