Scoria

Definition and stakes

Portrait of Gordon Stables Gordon Stables,  Annie o' the Banks o' Dee

“ Scoria was falling, and destroying all the shrubs and flowers in the beautiful valley. The river was mixed with boiling lava, and the noise therefrom was like a thousand engines blowing off steam at one and the same time. Surely never was such loud and terrible thunder heard before; and the lightning was so vivid and so incessant that not only did the island itself seem all ablaze, but even the distant sea. Crimson and blue fire appeared to lick its surface in all directions.
But the burning mountain itself was the most wondrous sight eyes of man could look upon.
”
Source: Gutenberg

James Nasmyth,  James Nasmyth, Engineer: An Autobiography

“ The result of their concavity of form is that the scoriae are almost certain to be shut up in the hollow part,—as the pieces will unite first at the edges and thus include the scoriae, which no amount of subsequent hammering will ever dislodge. They will remain lurking between, as seen in Fig.2. Happily, the means of obviating all such treacherous risks are as simple as they are thoroughly effective. ”
Source: Gutenberg

Portrait of Jules Verne Jules Verne,  A Journey to the Centre of the Earth (1871)

“ Fatality has cast us into a well of burning and boiling lava, of rocks on fire, of boiling water, in a word, filled with every kind of eruptive matter? We are about to be expelled, thrown up, vomited, spit out of the interior of the earth, in common with huge blocks of granite, with showers of cinders and scoriae, in a wild whirlwind of flame, and you say—the most fortunate thing which could happen to us. ”
Source: Gutenberg

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