iron pyrites

noun

1. pyrite; fool's gold.
2. marcasite.

iron pyrites

/ ˈpaɪraɪts /

noun

1. See pyrite
   another name for pyrite

Word History and Origins

Origin of iron pyrites¹

First recorded in 1795–1805

Example Sentences

Gold and iron pyrites, therefore, need never be mistaken for each other by any man who has a piece of steel about him.

From Project Gutenberg

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

From Project Gutenberg

There are two substances which look exceedingly like gold;—copper and iron pyrites, substances familiar to most of us.

From Project Gutenberg

In some places, this clay drift yields balls of iron pyrites, which renders the water unpalatable.

From Project Gutenberg

These beds of clay frequently contain iron pyrites, both in the crystallized and amorphous state.

From Project Gutenberg