Porcelaine #7

EPK 25.00
Ball clay 25.00
Kona F-4 feldspar 25.00
Silica 25.00
---------
100.00
Bentonite 1.00
Epsom salt 0.25

Na2O 1.9% Al2O3 22.6% SiO2 72.0%
K2O 1.6% P2O5 0.1%
MgO 0.2% TiO2 0.5%
CaO 0.6% Fe2O3 0.5%

Volatiles:

H2O 0.1%
SO3 0.1%
Other 6.7%

Loss On Ignition: 6.5%