Magnetite widely distributed, a variety of causes. Sweden Ji Luna is typical of magmatic deposits. Chile’s La iron ore is directly formed by volcanism slurry. Iron ore formed by contact metamorphism China Daye Iron Mine as an example. Iron ore by the deposition of iron rock formed by regional metamorphism (eg, China Anshan iron ore in the vicinity), mainly magnetite and hematite, a large scale, but lower grade, is the world’s most important iron ore sources. Former Soviet Union, North America, Brazil, Australia has the oversize of such iron ore. Than significant, and the ability to resist weathering, the magnetite in bed or in the coastal sand can also be enriched. Subjected to oxidation can be transformed into hematite; retain the original shape is known as the illusion of hematite.

However , The  iron ore minerals is widely used in the industry.such as follows:

Titanium magnetite, vanadium and titanium magnetite, and also titanium, vanadium ore minerals. Rich of Ti, V, Ni, Co elements can utilization.
Medicinal magnetite magnet alias Kuroishi, Tsz stone and spiritual magnet, magnet, suction needle stone. Efficacy: qianyang soothe the nerves; ears and keen eyes; qi and relieve asthma.