J Duade, you may be aware that is not uncommon to see an iron ore company photo op may featuring a magnet attached to the vertical face of an iron ore bearing out cropping.  This demonstrates the iron ore content in the rock. :)

    You may wish to try the same thing with a cool horsehoe magnet. If your cerebral taconite content correlates with expectations generated by your posts,  the magnet may stick to the rear of your medulla, enabling you to further assert your commanding influence in the ferrous sphere of strange matter. :)

 Canada Moose