mineral

Hematite

Iron(III) oxide, Fe2O3

AI-generated identification · may be incorrect

Hardness: 5.5-6.5. Color: Steel gray to black. Luster: Metallic. Crystal structure: Trigonal. High specific gravity.

Hardness: 5
Color: Steel gray to black
Luster: Metallic

Identified August 11, 2026More mineral →

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Physical properties

Hardness: 5.5-6.5. Color: Steel gray to black. Luster: Metallic. Crystal structure: Trigonal. High specific gravity.

Formation & geological history

Forms in varied geological environments, often as a primary mineral in sedimentary banded iron formations or as a secondary weathering product.

Uses & applications

Primary ore of iron; also used in jewelry (often tumbled or carved) and as a pigment.

Geological facts

Hematite derives its name from the Greek word for blood, due to its red streak. Some 'magnetic hematite' sold in stores is actually a synthetic material called hematine.

Field identification & locations

Identified by its distinctive cherry-red to reddish-brown streak on a streak plate, regardless of its external color. It is noticeably dense for its size.