Magnetite photograph

Magnetite

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Crystal habitOctahedral, fine granular to massive
Crystal classH-M symbol
Crystal systemCubic crystal system
Mohs scale hardness5. 5–6. 5
Unit cella = 8. 397 Å; Z = 8
Did you knowSmall grains of magnetite occur in almost all igneous rocks and metamorphic rocks as well as many sedimentary rocks.
Date of Reg.
Date of Upd.
ID696730
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About Magnetite


Magnetite is a rock mineral and one of the main iron ores, with the chemical formula Fe₃O₄. It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. It is the most magnetic of all the naturally-occurring minerals on Earth.

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