iron pyrites
Americannoun
Etymology
Origin of iron pyrites
First recorded in 1795–1805
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.
Prominent among these are galena and iron pyrites, the former being almost invariably gold-bearing.
From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" by Various
That is just what I was afraid of," said Julian; "but I reckon iron pyrites comes in lumps, don't it?
From The Haunted Mine by Harry Castlemon
A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock.
From Webster's Unabridged Dictionary by Noah Webster
A sulphide having two atoms of sulphur in the molecule; a disulphide, as in iron pyrites, FeS2; Ð less frequently called bisulphuret.
From Webster's Unabridged Dictionary (2nd 100 Pages) by Noah Webster
"I am on hand, like a bogus coin made out of iron pyrites; you can't get rid of me."
From The Haunted Mine by Harry Castlemon
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
