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For its constitution, anorthoclase-rich.
A coarse-grained crystalline normal igneous rock composed mostly of plagioclase. Anorthosite is usually an intrusive rock characterized by its composition: mostly calcian plagioclase feldspar (90–100%), with a small mafic component (0–10%). Pyroxene, ilmenite, magnetite and olivine are commonly present.
Classification of AnorthositoidHide
Sub-divisions of AnorthositoidHide
Mineralogy of AnorthositoidHide
Essential minerals - these are minerals that are required within the classification of this rock:
Non-essential minerals - these minerals are common, sometimes major components, but are not always present: