mineral

Tumbled Hematite

Iron(III) oxide (Fe2O3)

Hardness: 5.5-6.5 on Mohs scale. Color: Metallic gray to black (streak is cherry red). Luster: Metallic to sub-metallic. Crystal structure: Trigonal/Hexagonal. Specific gravity: 5.26.

Hardness: 5
Color: Metallic gray to black (streak is cherry red)
Luster: Metallic to sub-metallic

Identified July 10, 2026More mineral →

Explore Tumbled Hematite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Hardness: 5.5-6.5 on Mohs scale. Color: Metallic gray to black (streak is cherry red). Luster: Metallic to sub-metallic. Crystal structure: Trigonal/Hexagonal. Specific gravity: 5.26.

Formation & geological history

Formed primarily in sedimentary environments as a result of iron precipitation in marine and fresh water. It can also form as a sublimation product from volcanic activities or in hydrothermal veins.

Uses & applications

Primary ore of iron for steel production. In its polished form, it is used for jewelry, beads, and as a 'worry stone' in metaphysical practices. Also used as a pigment (red ochre).

Geological facts

Hematite is known for having a reddish streak regardless of its external metallic gray appearance. It was used by ancient civilizations for cave paintings and is a major component of 'banded iron formations'.

Field identification & locations

Identified by its high density (feels heavy for its size) and its characteristic reddish-brown streak when rubbed against an unglazed porcelain plate. Commonly found in Brazil, Australia, and the Lake Superior region of North America.