slag

• The slag is viscous and there is about 25-35\%Fe in the slag which is removed manually from the open furnace.
• Because the slag is highly inert and stable, it does not leach lead. —  Featured Articles - Encyclopedia of Earth
• The unsightly slag which is thrown away from the iron furnace forms beautiful crystals, and the very mud under foot can, as men of science tell us, be turned into gleaming metal, and sparkling gem. —  The Life of Duty, v. 2 A year's plain sermons on the Gospels or Epistles
• Proper conservation of our mineral resources will include the removal of the ugly, unsightly piles of culm, slag, and other refuse that lie about the mouth of the mines, and disfigure some of our most beautiful mountain scenery, for, as we have shown elsewhere, this should be used and not wasted. —  Checking the Waste A Study in Conservation
• First comes a molten cascade of basic slag which is borne away to cool, then to be ground to finest powder, before its quickening power is given to pasture and cornfield, imparting a deeper purple to the clover and a mellower gold to the rippling ears of wheat. —  Tales of the Ridings

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