mineral
Hematite Nodule
Hematite (Fe2O3)
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, reddish-brown to steel-gray color, metallic to dull luster, and leaves a reddish-brown streak. It has no true cleavage and an uneven to conchoidal fracture.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, reddish-brown to steel-gray color, metallic to dull luster, and leaves a reddish-brown streak. It has no true cleavage and an uneven to conchoidal fracture.
Formation & geological history
Formed through various processes including hydrothermal veins, sedimentary deposition, and weathering of iron-rich rocks. Common in desert environments and arid regions.
Uses & applications
Primary ore of iron, used in jewelry, as a pigment, and collected as a lapidary specimen.
Geological facts
Hematite has been used by humans as an artistic pigment for over 160,000 years, dating back to prehistoric cave paintings.
Field identification & locations
Identified easily by its characteristic reddish-brown streak on unglazed porcelain and high specific gravity. Plausible for the specified arid region in Iran which is rich in iron deposits.
