Monzonite

Monzonite
Igneous rock
Monzonite specimen from Rock Library (NASA JPL)
Composition
Mostly plagioclase and alkali feldspar

Monzonite is an igneous intrusive rock, formed by slow cooling of underground magma that has a moderate silica content and is enriched in alkali metal oxides. Monzonite is composed mostly of plagioclase and alkali feldspar.

Syenodiorite is an obsolescent term for monzonite[1] or for monzodiorite.[2] Larvikite is a particular form of monzonite.[3]

  1. ^ Allaby, Michael, ed. (2013). "Monzonite". A dictionary of geology and earth sciences (Fourth ed.). Oxford: Oxford University Press. ISBN 9780199653065.
  2. ^ Le Maitre, R.W., Igneous Rocks: A Classification and Glossary of Terms Cambridge University Press, 2nd ed, pp. 113 ISBN 0-521-66215-X
  3. ^ Cite error: The named reference andersen-1984 was invoked but never defined (see the help page).

Monzonite

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