Figure F135. A. Magnetite with ilmenite exsolution, ilmenite, and sulfides (Sample 305-U1309D-183R-2, 32–34 cm) (plane-polarized light; magnification = 20×). B. Chalcopyrite and pyrrhotite with exsolved flames of pentlandite (Sample 305-U1309D-183R-2, 32–34 cm) (plane-polarized light; magnification = 20×). C. Pyrrhotite, chalcopyrite, ilmenite (bottom), pentlandite (Sample 305-U1309D-204R-4, 64–67 cm) (plane-polarized light; magnification = 20×). D. Magnetite, pyrrhotite, and bornite (Sample 305-U1309D-256R-3, 85–88 cm) (plane-polarized light; magnification = 20×).
Previous | Close | Next | Top of page