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.
Magnetite. Previous (Magnetism). Next (Magnetosphere). Magnetite is a ferromagnetic mineral with the chemical formula Fe3O4 and the common chemical name ferrous-ferric oxide, which indicates the mineral comprises both a ferrous component, FeO (wuestite), wÃ¼stite and a ferric, Component fe 2 o (3). hematiteagnetite. Previous (Magnetism). Next (Magnetosphere). Magnetite is a ferromagnetic mineral with the chemical formula Fe3O4 and the common chemical name ferrous-ferric oxide, which indicates the mineral comprises both a ferrous component, FeO (wuestite), wÃ¼stite and a ferric, Component fe 2 o (3). hematite