copper pyrites

noun

, Mineralogy.

1. chalcopyrite.

copper pyrites

/ ˈpaɪraɪts /

noun

1. See chalcopyrite
   functioning as singular another name for chalcopyrite

Word History and Origins

Origin of copper pyrites¹

First recorded in 1770–80

Example Sentences

Quartz, containing disseminated hematitic iron-ore and copper pyrites.

From Project Gutenberg

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

From Project Gutenberg

Copper pyrites (or yellow ore), erubescite (or purple ore), and chalcocite (or grey ore) are the most important.

From Project Gutenberg

Thallium is a rare metal, found in small quantities in some varieties of iron and copper pyrites, and in some lithia micas.

From Project Gutenberg

It yields in four months about one ton and a half of sulphur from copper pyrites.

From Project Gutenberg