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A general term for granitoids typically occurring in rift zones and the interiors of stable continental plates. The prefix A stands for anorogenic. Usually mildly alkaline and K-rich.
Classification of A-type graniteHide
Mineralogy of A-type graniteHide
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: