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Melaquartz-monzogabbro

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A quartz-monzogabbro with an M' colour index of greater than 50.


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Classification of Melaquartz-monzogabbroHide

Quartz-monzogabbro is in section 9* of the QAPF diagram.

Mineralogy of Melaquartz-monzogabbroHide

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.
MaficsA petrological term for dark, rock-forming minerals rich in magnesium and/or iron.
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.

Internet Links for Melaquartz-monzogabbroHide

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