copper pyrites

noun Mineralogy.

chalcopyrite.

Origin of copper pyrites

First recorded in 1770–80

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for copper pyrites

Historical Examples of copper pyrites

Thallium is a widely-diffused metal, being found in many minerals, particularly in iron- and copper-pyrites and native sulphur.
Cooley's Practical Receipts, Volume II
Arnold Cooley

British Dictionary definitions for copper pyrites

copper pyrites

noun

(functioning as singular) another name for chalcopyrite

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012