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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Saurabh 1
It has to be Kyanite. As it is a major metamorphic mineral dominating in high pressure metamorphic terrane. While all others are related to Pegmatite deposits. Pegmatite is most probably a coarse grained igneous rock having composition resembling that of granitic composition. They form from the waters(probably hydrothermal fluid) that separate from a magma in the late stages of crystallization