Economic and Environmental Geology

Table. 2.

Table. 2.

Mineral composition of rock samples by XRD

Samples Mineral abundance in percentage (wt. %)
Albite Quartz Illite Microcline Kaolinite Chlorite Other minerals
FR 38.5 29.2 6.7 21.9 1.9 1.8 tr*
WR 43.1 26.9 9.3 20.6 tr tr
HWR 30.2 19.1 20.5 19.3 9.7 1.2 tr**
Soil 34.0 21.1 18.1 14.7 9.3 2.8

tr:trace, * : Montmorillonite, **: mixed layer mineral.

Econ. Environ. Geol. 2022;55:429-38 https://doi.org/10.9719/EEG.2022.55.5.429
© 2022 Econ. Environ. Geol.