iron pyrites

American  

noun

1. pyrite; fool's gold.

2. marcasite.

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iron pyrites British  

/ ˈpaɪraɪts /

noun

1. another name for pyrite

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Etymology

Origin of iron pyrites

First recorded in 1795–1805

Example Sentences

That is gold," said he; "there is no iron pyrites about that.

From The Haunted Mine by Castlemon, Harry

Now, iron pyrites is harder than steel, and therefore a knife will fail to scratch it.

From Harper's New Monthly Magazine Vol. IV, No. 19, Dec 1851 by Various

Sulphur in iron pyrites also acts as a reducing agent upon litharge, and increases the apparent effect in a similar manner.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

The ore is found in detached pieces and solid masses, in beds, in red clay, accompanied by sulphate of barytes, calcareous spar, blende, iron pyrites, and quartz.

From Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas by Schoolcraft, Henry Rowe

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