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mardi 1 novembre 2011

Cone 9 Mauve

Barium carbonate 20
Dolomite 8
Whiting 5
Nepheline syenite 45
Ball clay 10
Silica 12
Total 100

Manganese dioxide 3

Na2O 0.20 Al2O3 0.35 SiO2 1.97
K2O 0.06 TiO2 0.01
MgO 0.12 Fe2O3 0.00
CaO 0.26
MnO 0.09
BaO 0.27

Alumina:Silica ratio is 1.00:5.70
Neutral:Acid ratio is 1.00:5.72
Alk:Neut:Acid ratio is 1.00:0.35:1.98

Expansion: 89.3 x 10e-7 per degree C

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