mineral
Hematite
Fe2O3
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale. Color ranges from metallic gray to black or reddish-brown, with a metallic to dull luster and a distinct red-brown streak.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale. Color ranges from metallic gray to black or reddish-brown, with a metallic to dull luster and a distinct red-brown streak.
Formation & geological history
Forms in hydrothermal veins, sedimentary iron formations, and volcanic environments through iron oxidation and precipitation over geological eras.
Uses & applications
Primary ore of iron for steel production, used in pigments, radiation shielding, and carved into polished jewelry or ornamental items.
Geological facts
Hematite has been used by humans for cave art and cosmetics for tens of thousands of years. It is also found on Mars, contributing to the planet's reddish appearance.
Field identification & locations
Identify by its heavy heft and characteristic reddish-brown streak when scratched on unglazed porcelain. Commonly found globally in banded iron formations.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous