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gangue

American  
[gang] / gæŋ /

noun

  1. rock or mineral matter of no value occurring with the metallic ore in a vein or deposit.


gangue British  
/ ɡæŋ /

noun

  1. valueless and undesirable material, such as quartz in small quantities, in an ore

"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

Etymology

Origin of gangue

1800–10; < French < German Gang; see gang 1

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.

These elements generally occur, combined physically or chemically, as a tiny, tiny, tiny fraction of heavy, bulky, relatively worthless but intimately associated rock material known as gangue.

From Washington Post • May 18, 2017

All ore minerals are mixed with less desirable components called gangue.

From Textbooks • Jan. 1, 2017

The process of physically separating gangue minerals from ore-bearing minerals is called concentrating.

From Textbooks • Jan. 1, 2017

Metamorphism of iron and/or sulfide deposits commonly results in an increase in grain size that makes separation of gangue from the desired sulfide or oxide minerals much easier.

From Textbooks • Jan. 1, 2017

His rich float had been of quartz gangue!

From The Song of the Wolf by Mayer, Frank

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