Peru saltpeter

Peru saltpeter

[pə′rü ′sȯlt′pēd·ər]
(mineralogy)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Chile and Peru are the global leaders in the production of sodium nitrate; that is why it is also known as Chile or Peru saltpeter.