FS⇄MC (9:1) · Ferrous Sulfate · Manganese Chloride · Law of Travel
A Ferrous Sulfate ⇄ Manganese Chloride RSE card at 9:1 ratio. The center field is flat, rust-orange, and internally featureless. The perimeter — the scout field — shows clear manganese behavior. At first glance this looks uneventful. It isn't.