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File:Zirconium mineral concentrates - world production trend.svg

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Description
English: World production trend of zirconium mineral concentrates (in tons per year)
Date August 2007
Source U.S. Geological Survey
Author Leyo
Permission
( Reusing this file)
Public domain This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

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