Hematite vs Magnetite

Property Hematite Magnetite
Formül Fe2O3 Fe3O4
Kristal Sistemi Trigonal Cubic (Isometric)
Mineral Sınıfı 04 Oxides and Hydroxides 04 Oxides and Hydroxides
Mohs Sertliği 5.0-6.5 5.5-6.5
Renk Steel-gray to black, red-brown Black
Parlaklık Metallic Metallic
Çizgi Rengi Reddish-brown Black
Şeffaflık Opaque Opaque
Dilimlenme None None
Kırılma Conchoidal to uneven Conchoidal to uneven

Key Differences

  • Magnetite is strongly magnetic; hematite is not (except in some varieties).
  • Hematite has a distinctive reddish-brown streak; magnetite has a black streak.
  • Hematite is Fe2O3 (ferric oxide); magnetite is Fe3O4 (mixed ferrous/ferric oxide).
  • Hematite color ranges from steel-gray to reddish-brown; magnetite is always black.
  • Both are iron ores, but hematite is the primary commercial ore due to its higher iron content.

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