Thesaurus / obsidians
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How to use obsidians in a sentence
Pumice-stone is usually reckoned to be a volcanic product, resulting, probably, from the action of fire upon obsidians.
A DICTIONARY OF ARTS, MANUFACTURES AND MINESANDREW URESome of the most important varieties of acid lavas are known as trachytes, andesites, rhyolites, and obsidians.
THE WONDER BOOK OF VOLCANOES AND EARTHQUAKESEDWIN J. HOUSTONThe cochero, says that the place is known as itzlis—the obsidians, the knives.
IN INDIAN MEXICO (1908)FREDERICK STARR