
mineral
Hematite
Iron(III) oxide (Fe2O3)
AI-generated identification · may be incorrectHardness of 5.5 to 6.5, metallic to dull luster, reddish-brown streak, and uneven or conchoidal fracture.
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Physical properties
Hardness of 5.5 to 6.5, metallic to dull luster, reddish-brown streak, and uneven or conchoidal fracture.
Formation & geological history
Forms in diverse environments including hydrothermal veins, sedimentary deposits, and volcanic settings over various geological eras.
Uses & applications
Primary ore of iron, used in pigments, radiation shielding, jewelry, and ornamental carvings.
Geological facts
Hematite is the most important ore of iron and is responsible for the red coloration of soils and rocks on Mars.
Field identification & locations
Readily identified in the field by its distinct reddish-brown streak when scratched on unglazed porcelain.