Terra Cotta C/04 #42

Kentucky OM #4 31
Silica 29
Talc 4
Kona F-4 16
Custer feldspar 13
QIT Red Dust 7
Bentonite 3

Na2O 1.7% Al2O3 14.8% SiO2 71.2%
K2O 2.5% TiO2 0.4%
MgO 1.5% Fe2O3 6.5%
CaO 1.2%
MnO 0.0%
ZnO 0.1%

Volatiles: CO2 0.1%
Other 4.2%
Loss On Ignition: 4.2%

Note : Plastic enough.