Many people 'coaching' have no idea what coaching is as they haven't been trained or haven't been coached by a professionally trained and credentialed coach. There are 'schools' that will offer a credential after three hours of training and people read a book or watch a TV program and decide 'I'm a coach!'.
The most magnetic and common type is a lodestone. It consists of a brownish-black mineral called magnetite. Lodestones are natural compasses: Suspend one by a thread or wire and it will rotate until its magnetic field is aligned with Earthâs magnetic field. A magnetic field is the area around a material in which its magnetic forces can be detected.
The mineral magnetite that occurs in a variety of geologic environments is one of the few elements that cause a rock to become magnetic. This mineral is one of the most widespread iron oxide minerals. Magnetite is usually dispersed through a rock as microscopic crystals. The disbursed state usually results in the magnetite not being detected by a handheld magnetic. Lodestone, which is a big piece of magnetite, is strong enough to magnetize iron.