mineral
Magnetite
Magnetite (Fe3O4)
AI-generated identification · may be incorrectHardness 5.5-6.5 on Mohs scale, black to dark grey color, metallic luster, isometric crystal system, and strong natural magnetism.
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Physical properties
Hardness 5.5-6.5 on Mohs scale, black to dark grey color, metallic luster, isometric crystal system, and strong natural magnetism.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through magmatic crystallization, hydrothermal processes, or regional metamorphism.
Uses & applications
Primary ore of iron, used in heavy media separations, and utilized in scientific research regarding magnetism.
Geological facts
Magnetite is the most magnetic of all naturally occurring minerals on Earth and sometimes exhibits polarity acting as natural lodestone.
Field identification & locations
Easily identified by its black streak, high specific gravity, and strong attraction to ordinary magnets.
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