Each zone is named for the index mineral that appears in it, e.g. the chlorite zone is named for chlorite.
E.g. the chlorite zone is named for chlorite. Each zone is named for the index mineral that appears in it.
Each zone is named for the index mineral that appears in it. E.g. the chlorite zone is named for chlorite.
Each zone is named for the index mineral that appears in it. E.g. the chlorite zone is named for chlorite.