siderite

[ UK /sˈa‍ɪdɪɹˌa‍ɪt/ ]
NOUN
  1. iron ore in the form of ferrous carbonate
  2. a meteorite consisting principally of nickel and iron
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How To Use siderite In A Sentence

  • Overgrowths of fine-grained, bronze-colored siderite are often present on selected faces of the fluorite crystals.
  • It was the largest orebody found in the Rocky Point zone of the Sawatch Quartzite; ores were of the zinc manto type with marmatite, argentiferous galena, pyrite, and siderite.
  • Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue. The Earth Times Online Newspaper
  • In the flats surrounding the veins commercial iron deposits were found as limonite that was derived from the oxidation of iron carbonates (ankerite and/or siderite).
  • Iron likewise combines with a considerable variety of substances other than oxygen; and some of these compounds, as for instance iron carbonate (siderite), iron silicate (chamosite, glauconite, etc.), and iron sulphide (pyrite), are locally mined as iron ores. The Economic Aspect of Geology
  • There are various subtypes: goethite (needle iron ore, pyrrhosiderite): a-FeO (OH), lepidocrocite (ruby glance): b-FeO (OH), limonite: (by appearance) amorphous. 6. Purifying absorbent
  • The color of the siderite is grayish-white when cleaned, but in most instances it is a dull to iridescent reddish-brown because of alteration to iron oxides on the crystal surfaces.
  • They noted that in the Champion mine siderite is abundant, occurring as the chief gangue mineral of the sulfide ores in the dolomitic beds in the Sawatch Quartzite.
  • Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue. The Earth Times Online Newspaper
  • Other carbonates, i.e., ankerite, siderite, witherite, strontianite, may form if the respective metal cations are available.
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