copper pyrites

noun

Mineralogy.

1. chalcopyrite.

copper pyrites

/ ˈpaɪraɪts /

noun

1. (functioning as singular) another name for chalcopyrite

Word History and Origins

Origin of copper pyrites¹

First recorded in 1770–80

Example Sentences

Beat with a stone on copper pyrites, and it immediately begins to crumble.

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This ore is often found mixed with iron or copper pyrites, and sometimes with blende.

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Magnetic pyrites, copper pyrites, zinc blende and arsenical pyrites are other and less important examples, the last constituting the gold ore formerly worked in Silesia.

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The substance used for the purpose was copper pyrites, which was changed to an impure sulphate of copper by the action of oil of vitriol and moist air.

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Calcination is only advisable for ores which contain relatively much iron pyrites and little copper pyrites.

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