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1
CH3041
ON-LINE LECTURE 13


• 2) Size < 6 mm
• SEM or TEM are
  required.
• Some clay minerals classes
Layer type  Mineral        Type  Interlayer material
1 : 1        Kaolinite              - 2o None
2 : 1        Montmorillonite  - 2o Exchangeable cations
               (smectite group)           hydrated
              Muscovite            - 1o Monovalent cations
                (true mica)         non-hydrated
•
CLAYS result mainly from the weathering
of feldspars.   1) Hydrous sheet silicates
kaolinite
NaAlSi3O8