Geology and Minerals

Charnockite, St. Thomas Mount

Charnockite from St. Thomas Mount is a characteristically profuse exposure of quartz–feldspar–hypersthene rock located in southern suburb of Chennai in the Indian state of Tamil Nadu. The name originated from the use of the rocks quarried from a central band in the St.Thomas Mount for the tombstone of Job Charnock in 1679. It was declared as a National Geological Monument by the Geological Survey of India in 1975.

Also on this shelf

See also

• ▸19th century in ichnology
• ▸Epsilon Andromedae
• ▸Creation Evidence Museum

Uncatalogued shelf

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