vendredi 14 octobre 2011

Cone 4 #17 Satinée/Mate

Kona F-4 feldspar 59
EPK 15
Silica 12
Whiting 7
Zinc oxide (Calc.) 7
Total 100

Na2O 0.24 Al2O3 0.62 SiO2 3.57
K2O 0.11 P2O5 0.00
MgO 0.00 TiO2 0.00
CaO 0.32 Fe2O3 0.00
ZnO 0.32

Alumina:Silica ratio is 1.00:5.75
Neutral:Acid ratio is 1.00:5.76
Alk:Neut:Acid ratio is 1.00:0.62:3.58

Expansion: 74.9 x 10e-7 per degree C

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