| Species name | % | Oxide composition | |||||||||||
| SiO2 | Al2O3 | CaO | MgO | FeO | Fе2O3 | ||||||||
| % | Wt | % | Wt | % | Wt | % | Wt | % | Wt | % | Wt | ||
| Basalt | 72 | 49.4 | 72 | 16.4 | 72 | 9.72 | 72 | 4.6 | 88 | 3.9 | 72 | 4.45 | 72 |
| Marble | 18 |
|
|
|
| 31.3 | 19 | 209 | 13 |
|
|
|
|
| Iron oxide (II) | 7 |
|
|
|
|
|
|
|
| 90 |
|
|
|
| Chromium iron ore | 3.0 | 6.5 | 3 | 15.5 | 3 | 1.5 | 3 | 15.5 | 3 | 16.0 | 3 | 8.0 | 3 |
| Calculated chemical composition |
| 47.68 |
| 16.4 |
| 14.0 |
| 7.85 |
| 11.5 |
| 4.59 |
|