mineral

Hematite

Iron Oxide (Fe2O3)

Mohs hardness 5.5-6.5; metallic to sub-metallic luster; dark grey to silver-black color when polished; reddish-brown streak; trigonal crystal system; metallic reflectivity; specific gravity ~5.26

Identified July 24, 2026More mineral →

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Physical properties

Mohs hardness 5.5-6.5; metallic to sub-metallic luster; dark grey to silver-black color when polished; reddish-brown streak; trigonal crystal system; metallic reflectivity; specific gravity ~5.26

Formation & geological history

Forms through sedimentary precipitate in banded iron formations, hydrothermal veins, or metamorphic environments via contact metamorphism

Uses & applications

Primary ore of iron, polished beads and cabochons for jewelry, decorative polished palm stones, radiation shielding, anti-corrosive pigments

Geological facts

Despite its dark metallic silver appearance when polished, powdered hematite and its streak are bright reddish-brown, which inspired its name from the Greek word for blood ('haima')

Field identification & locations

Identified by high density/heaviness for its size, metallic mirror-like finish, non-magnetic or weakly magnetic nature, and characteristic red streak test; commonly found in Brazil, Australia, China, Lake Superior region USA, and South Africa