Mineralogy Class of Indian Tropical Soils

  • D. K. Pal


It is well understood that a thorough knowledge and appreciation of minerals in soils is critical for their proper use and management. Proper understanding on the role of minerals in soils has become almost mandatory to investigate the properties of the minerals, especially clay minerals, their mixtures and surface modifications in the form that they occur in the soil. While assigning the mineralogy class of soils, it is often observed that some of the important physical and chemical properties such as COLE for soils on basic igneous rocks, cation exchange capacity (CEC) of acid soils derived from soil CEC determined by BaCl2-TEA (pH 8.2) plus CEC by NH4OAc (pH 7) and effective CEC (ECEC) derived from sum of bases by NH4OAc (pH 7) plus IN KCl extractable Al+3, do not get due recognition. Although with the use of high resolution mineralogical tool like XRD both identification of minerals and some enigmatic soil mineralogical classes can be conveniently solved, such instrumental facilities are generally rare in national soils’ laboratory. Therefore, in this chapter some simple analytical methods are showcased, which are also useful in assigning proper mineralogy class.


Indian tropical soils Mineralogy class of soils Use of simple methods 


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© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • D. K. Pal
    • 1
  1. 1.ICAR-NBSS&LUPNagpurIndia

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