Table 1.
Composition of the natural pumice used in our experiments [41]
| SiO2 (%) | Al2O3 (%) | Fe2O3 (%) | MgO (%) | CaO (%) | Na2O (%) | K2O (%) | TiO2 (%) | SO3 (%) | Other (%) |
|---|---|---|---|---|---|---|---|---|---|
| 68 | 16.86 | 2.72 | 0.65 | 1.2 | 3.58 | 5.71 | 0.34 | 0.12 | 0.86 |
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