hornstone
Americannoun
noun
Etymology
Origin of hornstone
1720–30; translation of German Hornstein
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.
The copper ore which I saw adhered to whitish hornstone, or earthy quartz.
From An Account of The Kingdom of Nepal And of the Territories Annexed to this Dominion by the House of Gorkha by Hamilton, Francis
A new period of repose then ensued, during which various sulphurets were introduced, together with hornstone quartz, by which angular fragments of the older quartz before mentioned were cemented into a breccia.
From The Student's Elements of Geology by Lyell, Charles, Sir
In many places were strata, sometimes horizontal, but more frequently inclined at an angle of about forty-five degrees, consisting of limestone, hornstone, and conglomerate.
From A Journey to Katmandu (the Capital of Napaul), with The Camp of Jung Bahadoor; including A Sketch of the Nepaulese Ambassador at Home by Oliphant, Laurence
The porphyry has a compact basis, like hornstone, of a dull brown colour, which contains imbedded crystals of felspar and quartz, and occasionally of augite.
From Narrative of a Second Expedition to the Shores of the Polar Sea by Franklin, John
It runs also into varieties of jasper, chalcedony, and common quartz; and the different gradations from well-characterized hornstone, until its distinctive characters are lost in other sub-species of quartz, may be distinctly marked.
From Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas by Schoolcraft, Henry Rowe
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
