Dolomitic Lime

We mine and process our dolomitic lime at Bridgetown Quarry.

Dolomite is an organic agricultural soil fertiliser. The difference between calcitic and dolomitic lime, is that dolomitic lime is a source of magnesium and therefore can be used for soil that is in need of magnesium and it can neutralise acidic soil.

Therefore it is also important to check the % CCE (Calcium Carbonate Equivalent) and % Mg on a product analysis.


Dolomite is a soil improver, especially where there is a shortage of magnesium. Magnesium is the central element in the chlorophyll of the leaves of crops and it improves the energy status of the whole plant. Therefore magnesium is vital for overall plant health as well as improving soil conditions for increased crop production.


  • Jan – May (Fruit, Wheat, Canola)
  • May– Aug (Vines & Citrus)
  • Aug – Oct/Nov (Vegetables)


We source natural gypsum from the Bushmanland in the Northern Cape and West Coast and manufacture our own mixture to supply the market with the best and most cost-effective product for agricultural soil treatment.

Our processed gypsum is used as an organic agricultural soil fertiliser.

Gypsum has many advantages to soil and crops.

Advantage for Soil: 

  • Improves soil structure 
  • Leaches sodium from soil
  • Prevents soil compaction
  • Reduce aluminium in acid prone soils

Advantage for Crops: 

  • Increases root development
  • Stimulates seed production
  • Promotes dark green colour of plants
  • Forms the taste and flavour of vegetables and fruits



We've developed a new product through testing, research, and demand, called Gypsum 3:1 mix. The mixture consists of West Coast and Boesmanland gypsum.

The combination of the West Coast gypsum's heavier material content and moisture percentage and the finely powdered and dry Boesmanland gypsum produces the perfect ratio.

The composition of the product can be viewed here.

Application and benefits

  • In combination, the mixture forms an optimal application product that results in incredibly effective distribution.
  • There is minimal product loss and optimal distribution when applied to the ground.
  • The ratio results in a heavier product that is evenly distributed, and the moisture content helps mitigate dust as a significant factor.
  • Analysis has been conducted on the product itself, and the results are very promising for customers seeking a product that not only optimises soil but also effectively applies its value.

Minimal product losses plus optimal yield =
great value for money.

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