Chemische Eigenschaften
| Natrium | Na20 (%m/md) | 0,003 |
| Kalium | K2O (%m/md) | 0,002 |
| Magnesium | MgO (%m/md) | 0,002 |
| Sulfat | SO4 (%m/md) | < 0,020 |
| Kalzium | CaO (%m/md) | 0,020 |
| Lipinskigetal | 0.017 |
Engels Baksteen
Helden, Oeffelt
| Natrium | Na20 (%m/md) | 0,003 |
| Kalium | K2O (%m/md) | 0,002 |
| Magnesium | MgO (%m/md) | 0,002 |
| Sulfat | SO4 (%m/md) | < 0,020 |
| Kalzium | CaO (%m/md) | 0,020 |
| Lipinskigetal | 0.017 |
