Table 3: XRD mineralogical composition of the samples.

Samples code Mineral phase
Quartz Albite Halite Anatase Moganite
MER-01
MER-02 + + - - -
MER-03 + - + + -
MER-04 + + - - -
MER-05 + - - - +
MER-06 + + - - -

+Present /-Absent / ≠ Not detected.