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-black color, and yields a distinctive reddish-brown streak. It exhibits no true cleavage and has an uneven to conchoidal fracture.
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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-black color, and yields a distinctive reddish-brown streak. It exhibits no true cleavage and has an uneven to conchoidal fracture.
Formation & geological history
Forms in diverse geological environments, including hydrothermal veins, sedimentary iron formations, and as a weathering product of iron-rich rocks over millions of years.
Uses & applications
Primarily mined as the most important ore of iron for steel production, and used in jewelry, ornamental carvings, and as a pigment.
Geological facts
Hematite is the primary mineral responsible for the red color of the Martian surface. Ancient civilizations used powdered hematite as a red pigment for cave paintings and cosmetics.
Field identification & locations
Easily identified by its characteristic reddish-brown streak when scratched across an unglazed porcelain plate and its high specific gravity. Commonly found worldwide in massive deposits and iron ore bands.
