Table 1 Mineralogical comparisons (Vol.%).

From: Impact of de-ionized water on changes in porosity and permeability of shales mineralogy due to clay-swelling

Haynesville shale

Quartz

IIlite

Kaolinite

Chlorite

Total clay

Calcite

Siderite

Dolomite

Total Carbonate

Others

Original

24.1

43.2

0.9

0.6

44.7

17.9

0

3

20.9

10.3

Treated

24.1

42.9

0.9

0.5

44.3

17.6

0

2.9

20.5

11.1