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A coarse-grained crystalline rock consisting mostly of calcic plagioclase (>90%, usually labradorite) with <10% mafics. The mafic mineral may be clinopyroxene, orthopyroxene, olivine, or, more rarely, amphibole. Oxides, mostly magnetite or ilmenite, are also common.
Classification of AnorthositeHide
Sub-divisions of AnorthositeHide
Mineralogy of AnorthositeHide
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: