mineral

Iron (Hematite variety)

Iron (Fe) / Hematite (Fe2O3)

Hardness: 5-6 (Mohs scale); Color: Metallic grey to silver-black; Luster: Submetallic to metallic; Crystal structure: Hexagonal (Trigonal); Cleavage: None; Specific Gravity: 5.26

Hardness: 5-6 (Mohs scale)
Color: Metallic grey to silver-black
Luster: Submetallic to metallic

Identified March 21, 2026More mineral →

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Physical properties

Hardness: 5-6 (Mohs scale); Color: Metallic grey to silver-black; Luster: Submetallic to metallic; Crystal structure: Hexagonal (Trigonal); Cleavage: None; Specific Gravity: 5.26

Formation & geological history

Formed in high-temperature environments or hydrothermal veins. While native iron is rare terrestrially, metallic artifacts like this bracelet are manufactured from refined iron ores typically found in Banded Iron Formations (BIF) dating back 1.8 to 2.4 billion years.

Uses & applications

Primary source of steel for construction and automotive industries; polished metallic forms are used in magnetic therapy jewelry, beads, and bracelets.

Geological facts

Hematite gets its name from the Greek word 'haima' (blood) because it leaves a red streak when scratched. It is the most important ore of iron used by human civilization.

Field identification & locations

Identify by high density (heavy for its size) and a cherry-red to reddish-brown streak. In the field, it is often found in massive beds or as 'kidney ore' nodules. Check for a weak magnetic pull if it contains magnetite impurities.

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