chalcocite
Americannoun
noun
Etymology
Origin of chalcocite
1865–70; irregular chalco- + (anthra)cite
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The production of copper from chalcocite is performed by roasting the Cu2S in air to produce the Cu.
From Textbooks ● Feb. 14, 2019
Orvana has received approval to mine chalcocite, a mineral that is primarily copper, in a project here that the company says will create $2 billion in economic activity over 20 years.
From New York Times ● May 25, 2012
In the United Verde Mine, oxidizing conditions at present prevail to the bottom of the chalcocite zone.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
No traces of other primary minerals are present and the chalcocite here is regarded as probably primary.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
The natural inference was that as the veins were followed deeper the proportion of chalcocite would rapidly diminish, and that a leaner primary zone of chalcopyrite, enargite and other primary minerals would be met.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
