mineral
Hematite
Hematite (Fe2O3)
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, metallic to dull luster, steel-gray to black color, and a distinctive reddish-brown streak. It exhibits a botryoidal or massive crystal habit with no true cleavage.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, metallic to dull luster, steel-gray to black color, and a distinctive reddish-brown streak. It exhibits a botryoidal or massive crystal habit with no true cleavage.
Formation & geological history
Forms in diverse environments including hydrothermal veins, sedimentary iron deposits, and as volcanic sublimation products.
Uses & applications
Primary ore of iron, used in jewelry, pigments, and as heavy-media separation material.
Geological facts
Hematite is the most important ore of iron worldwide and has been used by humans for making red pigment since prehistoric times.
Field identification & locations
Easily identified in the field by its characteristic red streak when scratched on unglazed porcelain and its metallic sheen.
