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Charnockite Back to Geo Tourism

Charonockite, St. Thomas Mount, Chennai

Charnockite         Charnockite

Charonockite, St. Thomas Mount, Chennai is a typical exposure of quartz-feldspar-hypersthene rock, characterized by presence of two pyroxene facies metamorphism. The name �Charnockite� originated from the use of the same rock as tombstone of Job Charnock, the founder of Kolkata. The constituents of the rock suggest of its origin in particularly 'dry' and high temperature condition and believed to have important bearing in elucidating primordial crustal evolution of the earth.
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