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Kenyte

Kenyte from Mount Kenya

Kenyte is a type of igneous rock. More specifically, it is a variety of porphyritic phonolite or trachyte with rhomb-shaped phenocrysts of anorthoclase with variable amounts of olivine and augite in a glassy matrix; the glass may be devitrified.[1]

It was originally described and named by J. W. Gregory in 1900 for the occurrence on Mount Kenya.[2][3] Kenyte has also been reported from Mount Kilimanjaro (Tanzania) and Mount Erebus (Antarctica).[4]

References

  1. ^ "Mt. Kenya Volcano". Archived from the original on 26 March 2012. Retrieved 13 July 2011.
  2. ^ Roger Walter Le Maître, Igneous Rocks: A Classification and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks, Cambridge University Press; 2nd ed., 2002, p. 96 ISBN 978-0-521-66215-4
  3. ^ J. W. Gregory, The Geological History of Mount Kenya, The Quarterly journal of the Geological Society of London, Volume 56, 1900, pp. 219-220
  4. ^ Kyle, Philip R., ed., Volcanological and Environmental Studies of Mount Erebus, Antarctica, American Geophysical Union (December 1994), p. xi ISBN 978-0-87590-875-5


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Kenyte
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