mineral
Hematite Nodule
Hematite (Fe2O3)
Hardness: 5.5 to 6.5 on Mohs scale. Color: Dark grey to blackish, often showing a reddish-brown streak. Luster: Metallic to dull or earthy. Crystal structure: Trigonal. Specific gravity: 5.26.
- Hardness
- 5
- Color
- Dark grey to blackish, often showing a reddish-brown streak
- Luster
- Metallic to dull or earthy
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Physical properties
Hardness: 5.5 to 6.5 on Mohs scale. Color: Dark grey to blackish, often showing a reddish-brown streak. Luster: Metallic to dull or earthy. Crystal structure: Trigonal. Specific gravity: 5.26.
Formation & geological history
Formed through various processes including hydrothermal veins, sedimentary deposition in marine or lake environments, and weathering of iron-rich rocks.
Uses & applications
Primary ore of iron, used in steel production, pigment manufacturing, and carved into jewelry or worry stones.
Geological facts
Hematite gets its name from the Greek word 'haima', meaning blood, due to the red color of its powder or streak when scratched.
Field identification & locations
Easily identified by its characteristic reddish-brown streak when rubbed against an unglazed porcelain plate. Found worldwide.
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