Terra Cotta C/04 #27

Bell Dark ball clay 23
Kentucky OM #4 23
Custer feldspar 17
Talc 17
Silica 16
QIT Red Dust 4

Na2O 0.7% Al2O3 16.6% SiO2 67.9%
K2O 2.2% TiO2 0.7%
MgO 5.6% Fe2O3 4.2%
CaO 1.9%
MnO 0.0%
ZnO 0.1%

Volatiles: CO2 0.1%
Other 6.6%
Loss On Ignition: 6.3%

Note : Very good plasticity, 11.2/12