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Foid-bearing trachyandesite

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A trachyandesite containing some foid.


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Classification of Foid-bearing trachyandesiteHide

Sub-divisions of Foid-bearing trachyandesiteHide

Mineralogy of Foid-bearing trachyandesiteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali Feldspar > SanidineK(AlSi3O8)
Feldspar > PlagioclaseA petrological term for Albite-Anorthite Series.
FeldspathoidA family of rock-forming minerals consisting of aluminosilicates of sodium, potassium, or calcium and having too ...
Pyroxene > Clinopyroxene > Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Feldspathoid > NephelineNa3K(Al4Si4O16)
OlivineEquivalent to Fayalite-Forsterite Series; usually a more or less Fe-bearing forsterite.

References for Foid-bearing trachyandesiteHide

Reference List:
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Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press

Internet Links for Foid-bearing trachyandesiteHide

Mineral and/or Locality  
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