Spintangi Natural Gypsum Lumps (CaSO₄·2H₂O 90%+)
Balochistan Minerals exports high-purity natural gypsum rock and lumps (90%+ CaSO4) from Spintangi. Ideal set-retarder for Portland cement and plaster manufacturing.
- SGS / AHK Certified
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- Bulk & Container FCL
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- Origin: Spintangi & Sibi Geological Belts
Mineral Concession & Provenance
The massive sedimentary evaporite beds of Spintangi in Sibi District contain some of the purest natural gypsum formations in the world. Balochistan Minerals operates high-volume open-pit quarries supplying heavy crystalline white gypsum rock ($>90% ext{CaSO}_4cdot 2 ext{H}_2 ext{O}$) to international cement mills, plasterboard manufacturers, and agricultural soil remediation markets.
Certified Chemical Composition
| Chemical Compound / Property | Guaranteed Basis | Typical Mine Assay | Rejection Limit |
|---|---|---|---|
| Calcium Sulfate Dihydrate (CaSO4·2H2O) | 88.00% Min | 90.50% – 93.80% | Below 85.00% |
| Sulfur Trioxide (SO3) | 40.00% Min | 41.80% – 43.60% | Below 38.00% |
| Calcium Oxide (CaO) | 30.00% Min | 31.20% – 32.80% | Below 28.00% |
| Magnesium Oxide (MgO) | 1.50% Max | 0.40% – 0.85% | Above 2.50% |
| Silicon Dioxide (SiO2) | 2.50% Max | 0.80% – 1.60% | Above 4.00% |
| Combined Water | 18.00% Min | 19.20% – 20.40% | Below 16.00% |
| Free Moisture | 2.00% Max | 0.50% – 1.20% | Above 3.50% |
* All composite assays are sampled strictly in compliance with ISO protocols. Official certificate of analysis (COA) issued per parcel by independent international inspection surveyors (SGS / Alfred H. Knight / Cotecna) prior to vessel loading.
Grain Sizing & Particle Distribution
Industrial Off-Take & Usability
Portland Cement Set-Retarder
Interground with clinker at 3%–5% ratio to control flash setting of tricalcium aluminate (C3A) and regulate cement hydration.
Plaster of Paris & Gypsum Wallboard
Calcined at 150°C to hemihydrate ($CaSO_4cdot 0.5H_2O$) for architectural drywall panels, ceiling cornices, and molds.
Agricultural Soil Remediation
Reclaims sodic alkaline soils by displacing sodium with calcium ions, improving soil permeability and water retention.
Water Clarification & Chemical Desulfurization
Coagulant in water treatment and agricultural compost conditioning.
Mine-to-Port Supply Chain
Integrated handling and transport protocols guarantee that cargo arrives without contamination, moisture elevation, or grain degradation.
