Hiker Magnetic Hardness Pen

The Hiker Magnetic Hardness Pen is ideal for hardness testing while out in the field doing geological field work. One end has a sharp scoring knife for scratching samples while the other end has a magnet for testing the magnetic properties of minerals. Particularly useful when prospecting for iron ore. This is an essential piece of equipment for mineral exploration geologists. Comes with a pocket clip and pivot wire to allow it to swing freely.