Cone 9 Redux Quebec Slip Glaze #4 Quintessence

Quebec slip 33
Nepheline syenite 33
Whiting 16
Silica 10
Barium carbonate 6
Magnesium carbonate 2
Total 100

Bentonite 1
Rutile 10

Na2O 4.2% Al2O3 13.6% SiO2 50.1%
K2O 2.5% TiO2 9.4%
MgO 1.8% Fe2O3 3.0%
CaO 10.7%
BaO 4.7%

Volatiles:
H2O 0.4%
CO2 9.2%
Other 2.6%

Loss On Ignition: 10.9%
------------------------------------------------
Na2O 0.19 Al2O3 0.37 SiO2 2.30
K2O 0.07 TiO2 0.32
MgO 0.13 Fe2O3 0.05
CaO 0.53
BaO 0.08

Alumina:Silica ratio is 1.00:6.25
Neutral:Acid ratio is 1.00:7.27
Alk:Neut:Acid ratio is 1.00:0.37:2.68

Expansion: 90.7 x 10e-7 per degree C