Porcelaine #4

EPK 25.00
Ball clay 25.00
Nepheline syenite 20.00
Silica 30.00
---------
100.00
Bentonite 1.00
Epsom salt 0.25

Na2O 2.3% Al2O3 22.4% SiO2 72.3%
K2O 1.3% P2O5 0.1%
MgO 0.2% TiO2 0.5%
CaO 0.3% Fe2O3 0.6%

Volatiles:

H2O 0.1%
SO3 0.1%
Other 6.7%

Loss On Ignition: 6.4%