What Are the Uses of Magnetite?

Magnetite refers to the ore of the oxide-type mineral magnetite. Is an equiaxed crystal system. The crystals are octahedron and dodecahedron. The crystal face has stripes. Mostly granular aggregates. Iron black, or dark blue indigo. Streaks are black and semi-metallic. opaque. No cleavage. The fracture is uneven. The hardness is 5.5 to 6.5. The density is 5.16 to 5.18 g / cm3. With strong magnetism. Sexually brittle. Odorless and tasteless. Often produced in magmatic rocks and metamorphic rocks.

Mineral name. The main components of magnetite are

Chemical composition: FeO31.03%, Fe ₂ O ₃ 68.96%. Among them, Fe, Al, Ti, Cr, V, and the like are replaced by Fe; Mg, Mn, Zn, Ni, Co, Cu, and Ge are replaced by Fe. When Ti replaces Fe, it is accompanied by Mg-Fe and V-Fe; Ti can also

Various iron-containing minerals can be divided into 4 major categories according to their mineral composition: magnetite, hematite,

For the most important and common iron ore mineral. Titanium magnetite and vanadium titanium magnetite are also titanium,

Magnetite is widely distributed and has various causes. Kiruna, Sweden is typical

The Antarctic region is extremely rich in mineral resources. According to the identified resource distribution, the reserves of coal, iron and petroleum are the first in the world, and other mineral resources are still under investigation. In the Antarctic region, it is expected to find more and more abundant mineral resources, and to provide scientific basis for human use of these resources. Antarctica

Equiaxed crystal system, a0 = 0.8396nm; Z = 8.

black. Streaks black. Semi-metallic to metallic gloss. opaque. No cleavage, sometimes visible cracking, is often caused by the microcrystalline ilmenite and titanium magnetite inclusions aligned in the {111} direction. Sexually brittle. Hardness 5.5 ~ 6. The relative density is 4.9 ~ 5.2. With strong magnetism,

Produced in a relatively reduced environment. The main genetic types are: magmatic type; contact metasomatic type; high temperature hydrothermal type; regional metamorphic type.

Octahedron

Chinese Geological Museum Magnetite Collection Picture

Picture description : Magnetite belongs to oxides and hydroxides, massive; dark brown; streaks black; opaque; semi-metallic luster; hardness 5.5 6; specific gravity 4.8 5.3g / cm; no cleavage. This picture is a photograph of a specimen of Magnetite in Dangtu, Anhui Province, China.

Preservation unit : Chinese Geological Museum ^[4]