Natural Gypsum Fertilizer & Soil Conditioner

CalciSoil® gypsum is an agricultural grade gypsum mined from naturally occurring ocean deposits formed centuries ago. It acts as a soil amendment by reducing soil compaction and flocculating dispersive soils, thereby it loosens heavy/hard clay soils and improves water infiltration into subsoil. Reducing soil salinity as well as aluminum toxicity are among other benefits of CalciSoil® gypsum. It is a fertilizer too, since it contains essential micronutrients calcium and sulfur; CalciSoil® gypsum helps correct sulfur deficiency without changing soil pH.


  • Neutral pH
  • High purity
  • Free of Moisture
  • Natural Mineral
  • Easy to spread
  • High whiteness


For use in agricultural crops (paddy rice, tomatoes, potatoes, groundnuts, mushrooms, corn, sugarcane etc.); for lawn, turf, golf course and landscaping; for clearing muddy ponds and many others.

Guaranteed Analysis (Composition)

Purity (CaSO4.2H2O)95% min.
Calcium (Ca)23%
Sulfur (S)18%
Chloride (Cl)0.1% max.
Free Moisture1% max.

Chemical & Physical Properties

Solubility2.1 (sparingly soluble)
Crystal Water (CW)20.3
Mesh size200 (ultrafine)

Technical Data

Molecular FormulaCaSO4.2H2O
Chemical NameCalcium Sulfate Dihydrate
Specific Gravity 2.30 g/m3
Loose Bulk Density850 kg/m3
Compacted Bulk Density1220 kg/m3
CAS Number 13397245
HS Code25201010


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agricultural gypsum


Find all the information you need to know about CalciSoil agricultural gypsum before placing an order.

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