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Table 2

Bulk-chemical composition in weight percent oxides for samples MCE339v and MCE338.

Oxyde (wt%) SiO2 Al2O3 FeO MgO CaO Na2O K2O TiO2 MnO P2O5 Cr2O3 NiO LOI total
MCE339v 67.30 16.00 5.95 2.26 1.01 2.09 3.18 0.75 0.07 0.16 0.01 0.00 2.15 100.93
MCE338 59.70 19.00 7.32 3.26 1.09 2..07 3.82 0.93 0.11 0.12 0.02 0.00 2.95 100.39

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