The Geode Mine Naturally Magnetic Lodestone 4 Pieces - Includes Velvet Storage Bag.

4 naturally magnetic lodestones 1 to 1. 5 inch chunks. All have good magnetism. This is high quality lodestone from Iron County Utah, USA. A lodestone is a naturally magnetic piece of the mineral magnetite. Only a small amount of all magnetite is naturally magnetized and considered lodestone. One theory is that the magnetism is caused when lightning strikes outcroppings of magnetite. Velvet bag included.