Chemical Stone

Graymont mines some of the best limestone deposits available. As a result, the Company can produce a graded limestone that satisfies a wide range of industrial and agricultural specifications

Graymont (NZ) Limited actively manages the manufacture of its products under a Quality Management System certified to the ISO9001:2015 standard.

High Grade Limestone

High grade limestone is manufactured for various applications to rigid standards. Both chemical and physical parameters are measured and monitored on a daily basis.  Product sizes do vary between our sites. 

Dolomitic Limestone

Graymont also mines dolomitic limestone in Australia and can supply chemical-grade dolomitic limestone upon request. 
These products are outlined in more detail on the links provided.
 

Did you know?

There are three distinct types of limestone, defined by their magnesium carbonate (MgCO3) concentrations. These types are Dolomitic (35 to 46% MgCO3), Magnesian (5 to 35% MgCO3) and High calcium (less than 5% MgCO3).