Chemical composition (%P) | Raw diatomite Boudinar (preliminary study | Rif crude diatomite | Raw diatomite Ras Tarf (Rif, Morocco) | Raw diatomite Algeria | Raw diatomite Sig Algeria |
SiO2 | 57.1 | 72.8 | 69.00 | 47.52 | 68.015 |
Al2O3 | 9.63 | 5.22 | 4.37 | 2.85 | 7.575 |
CaCO | 6.15 | 5.86 | 5.30 | 22.44 | 19.25 |
MgO | 2.28 | 1.13 | 1.08 | 1.21 | 1.241 |
Fe2O3 | 5.13 | 1.94 | 2.58 | 1.22 | 2.024 |
Na2O | 2 | 0.83 | 0.67 | 0.09 | 0.200 |
K2O | 0.898 | 0.901 | 1.80 | --- | 1.491 |
TiO2 | 0.263 | 0.27 | --- | ---- | 0.144 |
ZrO2 | 0.0109 | ---- | --- | --- | 0.007 |
SrO3 | 0.0164 | ----- | 0.10 | --- | 0.038 |