Iron ore from mines
Black ore (Magnetite)
This is magnetic. If you have a magnet in your pocket, you can try it on a rock – it can contain black ore.
Bloodstone ore (Hematite)
If you scratch the surface, you get a blood-red colour. That’s a sure sign.
This is a brownish black, quite soft lump of iron-rich soil, almost like a rock. It is found in some marshes or on the bottom of lakes. This ore was easy to get hold of, and was for a very long time used for household needs by ordinary people.
This is a fine-grained red soil that contains a lot of iron.