mineral
Hematite
Hematite (Fe2O3)
AI-generated identification · may be incorrectHardness is 5.5 to 6.5 on the Mohs scale. Color ranges from metallic silver-gray to earthy reddish-brown, with a metallic to dull luster and a distinct reddish-brown streak.
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Physical properties
Hardness is 5.5 to 6.5 on the Mohs scale. Color ranges from metallic silver-gray to earthy reddish-brown, with a metallic to dull luster and a distinct reddish-brown streak.
Formation & geological history
Formed via hydrothermal veins, sedimentary deposition in water bodies, or as a weathering product in various geological environments.
Uses & applications
Primarily used as the principal ore of iron. Also utilized in jewelry, carvings, and as a polishing powder (rouge).
Geological facts
Hematite is the most important ore of iron in terms of total quantity produced. It is also found on Mars, contributing to the planet's reddish appearance.
Field identification & locations
Easily identified by its characteristic reddish-brown streak when scratched unglazed porcelain. Found worldwide, notably in the Lake Superior region and Brazil.
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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