Charnockite

Late-stage charnockite dykes cutting anorthosite, Rogaland, Norway
Job Charnock's Mausoleum at St John's Church compound, Kolkata

Charnockite (/ˈɑːrnəkt/) is any orthopyroxene-bearing quartz-feldspar rock formed at high temperature and pressure, commonly found in granulite faciesmetamorphic regions, sensu stricto as an endmember of the charnockite series.[1]

  1. ^ Le Maitre R.W.; Streckeisen A.; Zanettin B.; Le Bas M.J.; Bonin B.; Bateman P. (2005). Igneous Rocks: A Classification and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (2 ed.). Cambridge University Press. p. 20. ISBN 9781139439398.