• Thumbnail for Magnetite
    Magnetite is a mineral and one of the main iron ores, with the chemical formula Fe2+Fe3+2O4. It is one of the oxides of iron, and is ferrimagnetic; it...
    51 KB (5,373 words) - 07:58, 15 October 2024
  • Thumbnail for Iron ore
    or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe 3O 4, 72.4% Fe), hematite (Fe 2O 3, 69.9% Fe), goethite (FeO(OH),...
    55 KB (7,043 words) - 18:31, 14 October 2024
  • Thumbnail for Magnetosome
    a lipid bilayer membrane. Each magnetosome can often contain 15 to 20 magnetite crystals that form a chain which acts like a compass needle to orient...
    14 KB (1,717 words) - 03:27, 13 August 2023
  • Thumbnail for Lodestone
    Lodestones are naturally magnetized pieces of the mineral magnetite. They are naturally occurring magnets, which can attract iron. The property of magnetism...
    15 KB (1,577 words) - 07:51, 2 July 2024
  • Thumbnail for Iron(II,III) oxide
    chemical compound with formula Fe3O4. It occurs in nature as the mineral magnetite. It is one of a number of iron oxides, the others being iron(II) oxide...
    23 KB (2,169 words) - 13:28, 16 September 2024
  • Thumbnail for Ironsand
    is typically dark grey or blackish in color. It is composed mainly of magnetite, Fe3O4, and also contains small amounts of titanium, silica, manganese...
    21 KB (2,980 words) - 13:57, 17 May 2024
  • Thumbnail for Haber process
    high-purity magnetite (Fe3O4). The pulverized iron is oxidized to give magnetite or wüstite (FeO, ferrous oxide) particles of a specific size. The magnetite (or...
    68 KB (8,164 words) - 03:50, 2 October 2024
  • Thumbnail for Mineral redox buffer
    Earth's crust. MH: magnetite-hematite: 4 Fe3O4 + O2 ⇌ 6 Fe2O3 NiNiO: nickel-nickel oxide: 2 Ni + O2 ⇌ 2 NiO FMQ: fayalite-magnetite-quartz: 3 Fe2SiO4 +...
    10 KB (1,182 words) - 20:34, 23 September 2024
  • Thumbnail for Maghemite
    as magnetite (Fe3O4) and is also ferrimagnetic. It is sometimes spelled as "maghaemite". Maghemite can be considered as an Fe(II)-deficient magnetite with...
    8 KB (790 words) - 07:54, 15 October 2024
  • Centrex Metals Limited is an Australian resources exploration and mining company. Founded in 2001, Centrex Metals was listed on the Australian Securities...
    4 KB (351 words) - 10:50, 4 April 2024