It is an off-white limestone powder predominantly finer than 2mm and available from our Exshaw and Faulkner plants in Canada. Supercal® is commonly used across several livestock classes including beef cattle and dairy. It is also often used in the poultry industry for farming both broilers and breeders. 

CalCarb-PLUS powder is high purity and has low minor constituents such as silica, iron oxide and alumina. It is off white in colour and particle sizing is predominantly finer than 90 microns. CalCarb-PLUS can be used in applications including pH control for acid soil management, as a filler in asphalt, as a processing aid in mining operations and is suitable for some agriculture applications. 

Shell-Mix® is commonly used as an alternative to crushed shell for poultry and is also suitable for other applications where high calcium and consistent product sizing is required.

Shell-Mix® is dedusted below 850um and is available in bulk, 1000kg+ sacks and 25kg paper bags.

Shell-Mix® products are tested regularly to ensure they meet Graymont specifications.

Unical typically has a high Calcium Carbonate level, >90% and low minor constituents such as Silica, Ferric Oxide and Alumina. Oil absorption, surface area and bulk density may vary between resources. 

Please contact the sales team using the link below to obtain further information.  Unical is available in various formats including: bulk in pneumatic tanker, bulk via tipper and 1000kg+ sacks and paper bags on request. 

The practice of applying stone dust / rock dust in mines dates back to the early 1900's. Stone dust or rock dust serves as a heat sink material that can assist to prevent or suppress coal dust explosions through the absorption of heat and energy from any gases and radiant energy present in a explosion. 

The fine particle size, together with the chemical composition of this product, results in a product suitable for soil improvement and maintenance in agricultural applications where additional calcium and magnesium is required.

Graymont fine ground limestone products (FGLS) are used in many applications and where quality and consistency of grind is required. Some applications include agriculture, mortars and plasters, mining, asphalt manufacture and water treatment. These products can be used as fluxing agents and also in chemical formulations.