Canto rodado

Magnesium carbonate

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Additional information

Features and applications

  • Decoration


Bags of 20 kg (not available in grain size 60-120), 1000 kg Big Bag and in bulk.

Grains  sizes 10-20



White 99%, Yellow, Wood, Green, Black and Red

Technical data

CaO 31 %
MgO 21.3 %
Fe2O3 0.017 %
Al2O3 0.044 %
SiO2 0.083 %
Loss with fire 46.7 %
SO4 = soluble in acid
Cl = soluble in water < 0.008 %
S= Total < 0.09 %
Contaminants organic light
Contaminants organic humid
More white than the pattern
whiteness > 97% Chroma meter cr-400
Specific weight 2.85 grs/cm3 UNE 83133/90
pH 10 Electrometry
Hardness 3 E. Mohs
Apparent density (not compacted)
1.1 g/ml ISO 787-11
Molecular weight 184,40 grs  


The instructions for use are given according to our tests and knowledge and do not imply any commitment by GRUPO PUMA nor free the consumer from the examination and verification of the products for their correct use. Claims must be accompanied by the original packaging to allow a proper traceability.

GRUPO PUMA is not responsible, in any case, for the application of its products or constructive solutions carried out by the application company or other parties involved in the process and / or execution of the work, limiting the responsibility of GRUPO PUMA exclusively to the damages directly attributable to the supplied products, individually or integrated in systems, due to failures in their manufacturing process.

In any case, the drafter of the work project, the technical management or the person responsible for the work, or collaterally the application company or other parties involved in the process and / or execution of the work, must ensure the suitability of the products addressing the characteristics of them, as well as the conditions, support and possible pathologies of the work in question.

The values obtained by GRUPO PUMAS's products or its constructive solutions that, as the case may be, are determined by the EN standards or any other regulation that applies to it in each case refers exclusively to the conditions specifically stipulated in said regulation and that are referred to, among others, to certain characteristics of the support, humidity and temperature conditions, etc. without being them required in the tests obtained under different conditions, all in accordance with the relevant regulation.