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rare metal
noun as in rare-earth element
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Example Sentences
Erbium, a rare metal found along with yttrium, terbium, and other rare elements in some rare minerals.
From Project Gutenberg
Thallium is a rare metal, found in small quantities in some varieties of iron and copper pyrites, and in some lithia micas.
From Project Gutenberg
There were plenty of weapons, a few cassava-making implements, a rare metal dish or tin can and hammocks everywhere.
From Project Gutenberg
Terbium, ter′bi-um, n. a rare metal found in certain yttrium minerals.
From Project Gutenberg
Radium is a rare metal recently discovered, having remarkable qualities and very difficult to obtain.
From Project Gutenberg
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From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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