Raw Magnesite
High-purity raw magnesite with high MgO content and low iron/silica, essential for refractory manufacture, fertilizers, and magnesium chemical derivatives.
Product Overview: Natural Raw Magnesite
Raw Magnesite (Magnesium Carbonate, MgCO3) is a naturally occurring mineral ore valued for its high magnesium content (MgO ≥ 42–46%), low silica and calcium contamination, and high refractoriness.
Sakthima supplies natural raw magnesite lumps and pulverized powder directly from proven deposits, providing an ideal base material for dead burnt magnesite (DBM), caustic calcined magnesite (CCM), animal feed supplements, fertilizers, and specialty chemicals.
Key Benefits
High Thermal Resistance
Primary feedstock for producing basic refractory bricks and ramming masses for high-temperature kilns.
Magnesium Fertilizer Nutrient
Serves as an essential source of magnesium in soil fertilizers, boosting plant chlorophyll synthesis and crop yields.
Chemical Derivative Precursor
Reacts cleanly with acids to produce high-purity magnesium sulphate (Epsom salt), magnesium chloride, and nitrate.
Animal Feed Nutrient
Prevents grass tetany in cattle by providing bioavailable dietary magnesium.
Corrosion & Slag Protection
Protects furnace linings against aggressive basic slag corrosion in metallurgical operations.
Applications
Refractory Manufacturing
Agricultural Fertilizers
Magnesium Chemical Salts
Animal Nutrition Supplements
Technical Specifications
| Parameter | Refractory Grade | Chemical Grade | Flooring Grade | Agricultural | Utility Grade |
|---|---|---|---|---|---|
| Magnesium Carbonate | 97.2% | 95.0% | 92.5% | 88.0% | 82.0% |
| MgO Content | 46.5% | 45.2% | 44.0% | 41.8% | 39.0% |
| Silica (SiO2) | 0.8% | 1.5% | 2.5% | 3.8% | 6.5% |
| Calcium Oxide (CaO) | 0.6% | 1.2% | 1.8% | 2.5% | 4.5% |
| Iron Oxide (Fe2O3) | 0.12% | 0.25% | 0.45% | 0.85% | 1.50% |
| Alumina (Al2O3) | 0.10% | 0.20% | 0.35% | 0.65% | 1.20% |
| Loss on Ignition | 51.5% | 50.5% | 49.5% | 47.5% | 44.0% |
| Product Size | Lump 50-100 | Lump 50-100 | Crushed | Powder | Coarse |
Why Choose Us?
Verified Ore Genesis
Selected from crystalline and cryptocrystalline magnesite deposits with minimal gangue minerals.
Custom Particle Grinds
Available in 20–80mm lumps, 100 Mesh, 200 Mesh, and 300 Mesh powder.
Comprehensive XRF Testing
Every shipment backed with full XRF chemical analysis detailing MgO, SiO2, CaO, and Fe2O3 percentages.
Consistent Volume Supply
Long-term contracts supported with inventory reserves for uninterrupted plant operations.