Question

Which was the natural magnet found in magnesia?

Answer 1

Hint: The word Magnesia has its root in the Greece region. Recall the story of a shepherd you learned in earlier classes where the magnet was discovered while he was out grazing the sheep. Magnes was the name of the shepherd.

Complete answer: Magnesia is a term used to describe the various products from \[Magnesium\] rich sources. \[Magnesium\] makes up two percent of the earth’s crust and is the eight most plentiful element. \[Magnesite\] is the most common source of magnesia and has many industrial applications. The term \[Magnesite\] is referred to as the naturally occurring mineral. Magnesia is produced either from \[Magnesite\] ore or extracted from seawater or brines of \[magnesium{\text{ }}hydroxide.\]
Lodestone was found in magnesia. Lodestone is the naturally occurring magnetized piece of mineral magnetite. They are naturally occurring magnets, which can attract iron. The property of magnetism was first discovered in antiquity through lodestone. They were used for navigation purposes. Pieces of lodestone were suspended so that they could turn and used in magnetic compass therefore the name lodestone meaning leading stone. Another obsolete meaning is journey way. Lodestone is called kissing stone due to its attractive property.
The phenomena of attraction of small pieces of iron, cobalt, steel and nickel towards the ore is called magnetism. Those ore which shows this type of phenomena are termed as natural magnets. The natural magnets do not have any fixed shape. They are of irregular shape and size.

Note:
Artificial magnets are made up of iron in different components. They are magnetized pieces of iron or any other magnetic material. Their magnetic strength can be increased or decreased according to the usage by varying the magnetic material composition.