Solfata aliminioma
fepetra arahana
| zavatra | Malagasy |
| Al2O3 | ≥17% |
| Fe | ≤0.005% |
| PH(Vahaolana anaty rano 1%) | ≥3 |
Soraty eto ny hafatrao ary alefaso aminay
fepetra arahana
| zavatra | Malagasy |
| Al2O3 | ≥17% |
| Fe | ≤0.005% |
| PH(Vahaolana anaty rano 1%) | ≥3 |