Why Hawaii's volcano is so UNUSUAL

Great video, thanks... How do you explain that molten rock with iron in it is magnetic? Molten iron isn't magnetic or affected by magnetism. There's a temperature when you forge iron that is non-magnetic, a magnet doesn't have any visible or tactile effect on the metal. Magnets, any kinds, have their magnetic properties destroyed by applied heat. Increasing the temperature doesn't re-establish the iron's magnetic properties only cooling does. And this non-magnetic temperature is nowhere near the melting point or iron. If it is so, then the earth's magnetic properties are from the iron in the crust and not below it. How can molten iron be magnetic? Please explain this to me if you can. I would really want to know. PLEASE, NO AMATEUR RESPONSES OR THEORIES. Thanks to you all...