GEOLOGY

Detailed explanation-1: -An example of a natural magnet is the lodestone, also called magnetite. Other examples are pyrrhotite, ferrite, and columbite.

Detailed explanation-2: -Magnetite is a mineral, one of the three common naturally occurring iron oxides and a member of the spinel group. Magnetite is the most magnetic of all the naturally occurring minerals on Earth. It is a natural magnet.

Detailed explanation-3: -Other examples of natural magnets are pyrrhotite and ferrite.

Detailed explanation-4: -Magnetite is a rock mineral and it is an iron ore i.e. it has a large quantity of iron and some impurities. It is found to be attracted by magnets and it can be made permanent magnet by magnetizing it. Hence it has magnetic power i.e. it can attract small pieces of iron or small iron objects towards it.

Detailed explanation-5: -Magnetite is the only natural magnet.