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  2. Geology.com
    https://geology.com/minerals/hematite.…

    Hematite: A primary ore of iron and a pigment mineral

    Hematite is the most important ore of iron, and it has been used by people as a pigment for at least 40,000 years. Learn about the uses and properties of the …

    • Chemical Classification: Oxide
    • Streak: Red to reddish brown
    • Luster: Metallic, submetallic, earthy
  3. Britannica
    https://www.britannica.com/science/he…

    Hematite | Definition, Uses, & Facts | Britannica

    Oct 8, 2024 · Hematite, heavy and relatively hard oxide mineral, ferric oxide, that constitutes the most important iron ore because of its high iron content …

    • Wikipedia
      https://simple.wikipedia.org/wiki/Hematite

      Hematite - Simple English Wikipedia, the free encyclopedia

    • Wikiwand
      https://www.wikiwand.com/en/Haematite

      Hematite - Wikiwand

    • Wikipédia
      https://fr.wikipedia.org/wiki/Hématite

      Hématite — Wikipédia

    • Wikipedia
      https://en.wikipedia.org/wiki/Magnetite

      Magnetite - Wikipedia

      Magnetite reacts with oxygen to produce hematite, and the mineral pair forms a buffer that can control how oxidizing its environment is (the oxygen fugacity). This buffer is known as the hematite-magnetite or HM buffer.

    • Geology Science
      https://geologyscience.com/gemstone/rainbow-hematite

      Rainbow Hematite : Properties, Formation, Occurrence, Locations ...

    • ウィキペディア
      https://ja.wikipedia.org/wiki/赤鉄鉱

      赤鉄鉱 - Wikipedia

    • Wikipedia
      https://en.wikipedia.org/?title=Haematite&redirect=no

      Haematite - Wikipedia

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