scoria
noun
the refuse, dross, or slag left after melting or smelting metal; scum.
scoriaceous
-
a word derived from
scoria.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They are also more or less well developed near the bottom of a bed, which, as already explained, is frequently scoriaceous.
From Geology by James Geikie
The jasper is of an ochre yellow or red colour; it occurs in large irregular masses, and sometimes in veins, both in the altered trachyte and in an associated mass of scoriaceous basalt.
From Volcanic Islands by Charles Darwin
Thus, in most cases, a bed of lava is scoriaceous as well below as above.
From Geology by James Geikie
The walls, which were perfectly vertical, and disposed like masonry in a very regular manner, were composed of a brown-colored scoriaceous lava, similar to the light scoriaceous lava of Mt.
From The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources by John Charles Frémont
It is covered with short, yellowish grass through which the burnt-up, scoriaceous lava rock protrudes in rough masses.
From Travels in West Africa by Mary H. Kingsley
