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White mica geochemistry of the Catheart Mountain porphyry copper deposit, Maine
Robert A. Ayuso
1987, Bulletin 1803
White micas from hydrothermally altered and mineralized zones in the Catheart Mountain Cu-Mo porphyry deposit have regular compositional variations that are generally related to the contents of copper, total iron, and sulfur in the whole rock. Micas in unmineralized rocks exhibit no such relationship. White mica compositions reflect primarily the...