mineral
Hematite
Iron(III) oxide (Fe2O3)
AI-generated identification · may be incorrectHardness is 5.5 to 6.5 on the Mohs scale. Color ranges from metallic gray and silver to reddish-brown, with a characteristic reddish-brown streak. It exhibits a metallic to dull luster and a trigonal crystal system.
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Physical properties
Hardness is 5.5 to 6.5 on the Mohs scale. Color ranges from metallic gray and silver to reddish-brown, with a characteristic reddish-brown streak. It exhibits a metallic to dull luster and a trigonal crystal system.
Formation & geological history
Forms in diverse geological environments, particularly hydrothermal veins, sedimentary iron formations, and volcanic deposits.
Uses & applications
Primary ore of iron for steel production, also utilized in pigments, polishing compounds, and ornamental jewelry.
Geological facts
Hematite is the most important ore of iron on Earth and is also found on Mars, giving the planet its characteristic red color.
Field identification & locations
Easily identified by its distinct reddish-brown streak when scratched on unglazed porcelain. Commonly found worldwide, especially in banded iron formations.
