Supplying locally produced Ag-Lime to the Wide Bay since 1990.

What is Gypsum?

Gypsum is a soft sulphate mineral, which is widely used as a fertiliser. It's also used in other products like plaster and chalk.

Our Gypsum is perfect for keeping the calcium level of your soil intact, without changing the pH of the soil. It has no neutralising value, meaning it's perfect for spreading where the pH levels are already where they need to be.

The Composition of Our Gypsum

  • 19.9% Calcium
  • 0.42% Silica
  • 1.87% Iron
  • .01% Phosphorous
  • .41% Potassium
  • .01% Manganese
  • 25 ppm Zinc
  • 15 ppm Copper
  • .01% Sodium
  • 12.55% Sulphur
  • 5 ppm Cobalt
  • 20 ppm Boron
  • .2 ppm Selenium
  • 1.75 Neutralising Value

 * This list is a typical representation of the composition of our Gypsum. We source it from naturally occurring deposits mostly located in Central Queensland.

The Benefits of Gypsum

An excellent source of Calcium and Sulphur for plant nutrition without increasing the pH. Great for products like peanuts, pineapples, etc.

Gypsum has no neutralising capabilities, which means that it can be used on neutral pH soils.

Gypsum is also perfect for using on clay soils, to break them up.

Spreading Services Available

We're also available to spread Ag-Lime onto your soil, making your Ag-Lime purchase even easier. Check out our spreading service page for more details.


If you're in the market for quality Gypsum, get in touch with us to see how we can help.