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iron pyrites
iron pyrites
/ ˈpaɪraɪts /
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Word History and Origins
Origin of iron pyrites1
First recorded in 1795–1805
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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
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