• Thumbnail for Siderite
    the iron, resulting in the siderite-smithsonite, siderite-magnesite, and siderite-rhodochrosite solid solution series. Siderite has Mohs hardness of 3.75...
    11 KB (1,196 words) - 09:59, 10 November 2023
  • Thumbnail for Diagenesis
    fragments and fossils can be replaced by other minerals (e.g. calcite, siderite, pyrite or marcasite) during diagenesis. Porosity usually decreases during...
    13 KB (1,457 words) - 11:18, 29 September 2024
  • Thumbnail for Ironstone
    either of oxides, i.e. limonite, hematite, and magnetite; carbonates, i.e. siderite; silicates, i.e. chamosite; or some combination of these minerals. Freshly...
    4 KB (438 words) - 20:09, 14 August 2024
  • Thumbnail for Ankerite
    crystallographic and physical characters resemble those of dolomite and siderite. The angle between the perfect rhombohedral cleavages is 73° 48′, the hardness...
    5 KB (307 words) - 22:22, 22 April 2023
  • Thumbnail for Taconite
    Taconite Sedimentary iron formation rock Composition Primary Magnetite, hematite and chert Secondary Siderite, greenalite, minnesotaite and stilpnomelane...
    12 KB (1,446 words) - 20:11, 8 June 2024
  • Thumbnail for Riebeckite
    rocks; and with grunerite, magnetite, hematite, stilpnomelane, ankerite, siderite, calcite, chalcedonic quartz in iron formations. The riebeckite granite...
    7 KB (557 words) - 07:23, 9 July 2024
  • Thumbnail for Rhodochrosite
    Rhodochrosite forms a complete solid solution series with iron carbonate (siderite). Calcium (as well as magnesium and zinc, to a limited extent) frequently...
    9 KB (775 words) - 20:30, 23 August 2024
  • Thumbnail for Iron ore
    Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe), or siderite (FeCO3, 48.2% Fe). Ores containing very high quantities of hematite or...
    55 KB (7,043 words) - 18:31, 14 October 2024
  • Thumbnail for Iron-rich sedimentary rocks
    oxide group consisting of hematite, goethite, and magnetite. The carbonate siderite is also typically mined. A productive belt of iron formations is known...
    16 KB (2,062 words) - 00:10, 14 January 2024
  • Thumbnail for Iron(II) carbonate
    chemical compound with formula FeCO 3, that occurs naturally as the mineral siderite. At ordinary ambient temperatures, it is a green-brown ionic solid consisting...
    7 KB (654 words) - 17:37, 28 June 2023