MGL-ML-3 Limestone

Certified Reference Materials

MGL-ML-3 Limestone

Purchase Code: IAG CRM-8

IAG members: £ 100
Non-members: £ 150

ML-3 certificate


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The starting material, a bulk limestone, was collected from the limestone occurrence in the Dund Baitlagiin gol area located in the Bayndelger Soum, Tuv Province, Mongolia and prepared as a candidate reference material by the Central Geological Laboratory, Ulaanbaatar, Mongolia. In order to increase silica content, a small amount of clay material was blended with the bulk material before homogenising. The material consists of a homogeneous powder, all of which passed through a 75 μm sieve.

The mineralogy of the sample (in g/100g) has been determined as 92.6 calcite, 2.9 magnesite, 4.3 quartz and albite, with traces of muscovite, amphiboles and magnetite.

The material is available in units of 100 g packaged in a polyethylene bottle.