Table 1.
Classification of clay minerals.
| Structure | Dioctahedral | Trioctahedral |
|---|---|---|
| T:O | Kaolinite group [10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26] | Serpentine group [27,28,29] |
| Pyrophyllite | Talc | |
| T:O:T | Smectite group [30,31,32,33,34,35,36,37,38,39,40,41,42,43,44] | |
| Montmorillonite [45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77] | Saponite | |
| Beidellite | Hectorite | |
| Nontronite | Stevensite | |
| Vermiculite group [14,78,79,80,81,82] | ||
| Illite | ||
| Mica group [81,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126] | ||
| Muscovite | Biotite | |
| Paragonite | Phlogopite | |
| Lepidolite | ||
| T:O:T:o | Chlorite group [127,128,129,130,131,132,133,134,135] | |
| Paligorskite | Sepiolite | |