noun, plural sco·ri·ae [skawr-ee-ee, skohr-] /ˈskɔr iˌi, ˈskoʊr-/.
Origin of scoria
Examples from the Web for scoriae
The solid matter thrown out by volcanoes consists of lapilli, scoriae, dust and bombs.The San Francisco Calamity|Various
We have as yet no proof that Man witnessed the origin of these hills of lava and scoriae of the middle phase of volcanic action.The Geological Evidence of The Antiquity of Man|Charles Lyell
They are at a depth of about 12 ft., in slaty shale containing Llandeilo fossils and contemporaneous felspathic ash and scoriae.
After the scoriae have been skimmed off, the upper and purer portion of the mass is refined, and the lower part re-melted.The Mines and its Wonders|W.H.G. Kingston
The column of cinders, of scoriae, of broken rocks and earth, had wholly ceased to ascend.A Journey to the Centre of the Earth|Jules Verne