Iron Ore

How to Identify Iron Ore
The iron ore are rocks and minerals from which metallic iron can be
economically extracted. The ores are usually rich in iron oxides and vary in
color from dark grey, bright yellow, or deep purple to rusty red. It is an
important raw material for iron and steel production enterprises. Natural ore
(iron ore) is gradually separated by crushing, grinding, magnetic separation
and other procedures. Iron ore is a kind of mineral aggregate that contains
iron or iron compound and can be used economically. Iron forms a critical part
of modern civilization and the uses of iron ore dates back to thousands of
years.

The grade of iron ore refers to the mass fraction of iron element in iron ore,
generally speaking, the iron content. For example,if the grade of iron ore is
62, it means the mass fraction of iron element is 62%.

Iron ore resources
The world's iron ore resources are concentrated in Australia, Brazil, Russia,
Ukraine, Kazakhstan, India, the United States, Canada, South Africa, and other
countries. As the world's largest iron ore demanding country, China's iron ore
reserves are big but the grade is relatively low. From the perspective of the
industrial economy, it is better to import from Australia, Brazil and other
countries that are rich in the natural iron ore resources.

Brazil's iron ore resources are extremely rich, accounting for 6.5% of the
world's total reserves, making it the world's largest producer of iron ore.
Brazil's Vale (CVRD) is the world's largest iron ore producer and exporter, and
the largest mining company in the Americas. With a reserve of about 4 billion
tons of iron ore, its main minerals can be mined for nearly 400 years.
Main feature and types of iron ore
Iron exists in nature in the form of compound, especially in the form of iron
oxide. Magnetite is a kind of iron oxide ore, the main component of which is
Fe3O4. It is a complex of Fe2O3 and FeO. It is black gray, with a specific
gravity of about 5.15, containing fe72.4%, O 27.6%, and is magnetic. After
long-term weathering, it becomes hematite.

Hematite is also a kind of iron oxide ore, the main component is Fe2O3, which
is dark red, the specific gravity is about 5.26, containing Fe70%, o30%, which
is the most important iron ore.

Siderite is a kind of ore containing ferrous carbonate. Its main component is
FeCO3, which is cyan gray and its specific gravity is about 3.8. This kind of
ore mostly contains a considerable amount of calcium salt and magnesium salt.

HUARO provides different grades of iron ore to customers around the world to
meet their needs.
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