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Black Scoria
| Oxide | Analysis | Formula | |
|---|---|---|---|
| CaO | 6.02% | 0.54 | |
| K2O | 4.09% | 0.22 | |
| MgO | 4.34% | 0.55 | |
| Na2O | 2.65% | 0.22 | |
| Al2O3 | 20.09% | 1.00 | |
| SiO2 | 54.37% | 4.59 | |
| Fe2O3 | 5.15% | 0.16 | |
| FeO | 2.60% | 0.16 | |
| LOI | 0.69% | n/a | |
| Oxide Weight | 504.21 | ||
| Formula Weight | 507.72 | ||
| By Tony Hansen Follow me on         |  |
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