Gaois

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2 results

  1. ENERGY|coal and mining industries|mining product|metallic ore|iron ore

    #627374

    IATE #1400186
    iarnchloch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    amhiarann Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Eisenerz
    de
    iron ore
    en
    Definition rocks and minerals from which metallic iron can be economically extracted Reference "Wikipedia > Iron ore (22.11.2022)"
    minerai de fer
    fr
  2. SCIENCE|natural and applied sciences|earth sciences|geology

    #680518

    IATE #1651561
    iarnchloch Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    ironstone
    en
    Definition sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron ore compound from which iron (Fe) can be smelted commercially Reference "Wikipedia > 'Ironstone' (22.11.2022)"
    Comment "Not to be confused with native or telluric iron, which is very rare and found in metallic form, the term ironstone is customarily restricted to hard, coarsely banded, non-banded, and non-cherty sedimentary rocks of post-Precambrian age. The Precambrian deposits, which have a different origin, are generally known as banded iron formations.Ironstone as a source of iron.Ironstone, although widespread, is a limited source of iron. Historically, most British iron originated from ironstone, but it is now rarely used for this purpose because it is far too limited in quantity to be an economic source of 'iron ore'."