mineral
Hematite
Hematite (Fe2O3)
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, metallic to dull luster, steel-gray to reddish-brown color, and an unmistakable reddish-brown streak. It crystallizes in the trigonal system.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, metallic to dull luster, steel-gray to reddish-brown color, and an unmistakable reddish-brown streak. It crystallizes in the trigonal system.
Formation & geological history
Forms in diverse environments including hydrothermal veins, sedimentary iron deposits, and volcanic settings through oxidation processes.
Uses & applications
Primary ore of iron, used in jewelry, as a pigment, and in heavy media separation.
Geological facts
Hematite is the most important ore of iron and is also found on the planet Mars, giving the Martian surface its characteristic red color.
Field identification & locations
Easily identified in the field by its distinct reddish-brown streak when scratched on unglazed porcelain. Commonly found worldwide.
