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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Saurabh 1
It has to be Kyanite, as at such high pressure of 6kbar , kyanite would be stable only not other two polymorphs. You can have different polymorphic transformation in case of upliftment, in which the different physical condition prevailed and there is a decrease in pressure. So at this stage of upliftment , you can see transition from Kyanite to Andalusite or Kyanite to sillimanite (that surely attributed to changing physical conditions).