Fig. 1.
XRD patterns of saponite (a), МСS 2 (b), МСS 4 (c), МСS 7 (d), МСS 10 (e), and Fe3O4 (f): A—saponite NaMg3[AISi3O10](OH)2·4H2O; В—montmorillonite NaMgAlSiO2(OH)∙H2O; С—quartz SiO2; D—calcite СаСО3; and M—magnetite Fe3O4
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