mineral
Hematite
Hematite (Fe2O3)
AI-generated identification · may be incorrectHardness: 5.5-6.5 on Mohs scale. Color: Dark gray, reddish-brown, or black. Luster: Metallic to dull. Crystal structure: Trigonal. Streak: Cherry-red to reddish-brown. Specific gravity: 5.3.
- Hardness
- 5
- Color
- Dark gray, reddish-brown, or black
- Luster
- Metallic to dull
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Physical properties
Hardness: 5.5-6.5 on Mohs scale. Color: Dark gray, reddish-brown, or black. Luster: Metallic to dull. Crystal structure: Trigonal. Streak: Cherry-red to reddish-brown. Specific gravity: 5.3.
Formation & geological history
Forms in various environments, commonly as hydrothermal veins, sedimentary iron formations, and as a weathering product of iron-rich rocks. Geological age ranges from Precambrian banded iron formations to modern deposits.
Uses & applications
Primary ore of iron for steel production, used in jewelry, ornamental carvings, and as a pigment.
Geological facts
Hematite is the most important ore of iron in the world. Its name is derived from the Greek word 'haima', meaning blood, due to its characteristic red streak.
Field identification & locations
Easily identified by its distinctive reddish-brown streak, metallic luster, and high specific gravity (feels heavy for its size). Found worldwide.
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