Graymont Calgrit® is primarily used for the poultry and stockfeed industry.


Calgrit® limestone is manufactured from selected limestone and is screened to meet defined sizing criteria. Calgrit® is commonly used as an alternative to crushed shell and is an excellent source of calcium for poultry. 

Calgrit® as a carrier mineral.

Calgrit® can be used as a carrier mineral after coating with trace elements and subsequent application in the fertilizer sector. 

Calgrit® products are supplied in various formats including: bulk, 1000kg+ sacks and paper bags on request. 


Calgrit® is currently available from our Attunga and Riverton sites in New South Wales, Australia. Please contact our sales team to enquire further about Calgrit®.

Did you know?

Limestone, the most important and abundant sedimentary rock in the world, is formed by the compaction of the remains of coral animals and plants on the bottoms of oceans.