Chemical composition (wt%)

SiO₂

Al₂O₃

Fe₂O₃

K₂O

Na₂O

TiO₂

SiO₂/Al₂O₃

57.51

23.12

15.67

2.35

0.73

0.83

2.49

Mineralogical composition (wt%)

Kaolinite = 38.44; Illite = 19.9; Goethite = 12.28; Hematite = 4.44; Quartz = 24.94

Specific area (m²∙g⁻¹)

25.62

Density

(g∙cm⁻³)

2.8

Plasticity index

17

Methylene blue value

(g/100 g soil)

0.5