Mixtures Whole rock Clay fraction Quartz Calcite Feldspars Phyllosilicates Hematite Kaolinite Illite Smectite BM 35 6 tr* 58 0 48 6 46 MK 51 2 6 39 2 42 20 38

Table 2: Mineralogical composition of BM and MK the mixtures (Wt.%).