• Alok Krishna Gupta
Part of the Springer Geology book series (SPRINGERGEOL)


Potassium-rich silica-undersaturated igneous rocks may be classified primarily on the basis of their chemistry and mineralogy, but on petrological stand point the mineralogical classification is more preferred here particularly in view of plethora of rock names given on the basis of localities from which these rocks have been described. Their nomenclature is therefore, not only confusing but also complex at times.


Bulk Composition Chromian Spinel Potash Feldspar CIPW Norm High Al2O3 Content 
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Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Mineralogy and PetrologyUniversity of AllahabadAllahabadIndia

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