Cone 4 #10 Transparente

Lithium carbonate 5
Custer feldspar 36
Whiting 15
Zinc oxide (Calc.) 4
Magnesium carbonate 2
EPK 14
Silica 24
Total 100

Na2O 0.05 Al2O3 0.32 SiO2 2.64
K2O 0.11 P2O5 0.00
MgO 0.06 TiO2 0.00
CaO 0.44 Fe2O3 0.00
Li2O 0.19
ZnO 0.14

Alumina:Silica ratio is1.00:8.14
Neutral:Acid ratio is 1.00:8.16
Alk:Neut:Acid ratio is 1.00:0.32:2.65

Expansion: 70.3 x 10e-7 per degree C
Oxides causing abnormal expansion: Li2O