mineral
Hematite
Fe2O3
AI-generated identification · may be incorrectMohs hardness of 5.5 to 6.5, metallic to dull luster, steel-gray to black color, and a distinctive reddish-brown streak.
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Physical properties
Mohs hardness of 5.5 to 6.5, metallic to dull luster, steel-gray to black color, and a distinctive reddish-brown streak.
Formation & geological history
Forms in diverse geological environments, particularly hydrothermal veins, sedimentary iron deposits, and volcanic settings.
Uses & applications
Primary ore of iron, used in jewelry, for making beads, and as a polishing powder (rouge).
Geological facts
Hematite is the most important ore of iron worldwide and has been used by humans for cave art and amulets since prehistoric times.
Field identification & locations
Easily identified by its heavy weight and characteristic reddish-brown streak on an unglazed porcelain plate; found worldwide.
