mineral

Hematite

Hematite (Fe2O3)

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.

Hardness: 5
Color: Dark gray, reddish-brown, or black
Luster: Metallic to dull

Identified August 1, 2026More mineral →

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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.