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Andesitic Pumice

Oxide Analysis Formula Tolerance
CaO 4.74% 0.49
K2O 2.42% 0.15
MgO 1.94% 0.28
Na2O 2.42% 0.22
Al2O3 17.70% 1.00
SiO2 60.56% 5.81
Fe2O3 3.93% 0.14
LOI 6.29%n/a
Oxide Weight 540.02
Formula Weight 576.27

Related Information

Links

Materials Volcanic Ash
Powdered volcanic ash is used to make ceramic glazes, some varieties have a chemistry similar enough to glaze that high percentages can be employed.

Data

Dry M.O.R. (50% Silica) 304C

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