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Monzogranite

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A granitoid (a coarse grained igneous rock composed mostly of quartz, Kspar (alkali-feldspar) and plagioclase), with subequal amounts of plagioclase and Kspar. More specifically a granite having an alkali-feldspar/total feldspar ratio from 0.35-0.65 on the QAPF diagram. Often called an adamellite, though this name has been used for other rocktypes also.


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Classification of MonzograniteHide

Monzogranite is in section 3b of the QAPF diagram.

Sub-divisions of MonzograniteHide

Mineralogy of MonzograniteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali FeldsparFeldspar Group minerals rich in Potassium or Sodium.
Feldspar > PlagioclaseA petrological term for Albite-Anorthite Series.
Silica > QuartzSiO2
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAn informal name for dark green to black amphiboles, mostly ferro-hornblende or ...
Mica > BiotiteA series or subgroup of the Mica Group.
Mica > MuscoviteKAl2(AlSi3O10)(OH)2

Synonyms of MonzograniteHide

References for MonzograniteHide

Reference List:
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Le Maitre, R.W., (editor), Streckeisen, A., Zanettin, B., Le Bas, M.J., Bonin, B., Bateman, P., Bellieni, G., Dudek, A., Efremova,S., Keller, A.J., Lameyre, J., Sabine, P.A., Schmid, R., Sørensen,H., Woolley, A.R., (2002) 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 edition.

Internet Links for MonzograniteHide

Mineral and/or Locality  
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