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riebeckite

[ree-be-kahyt] /ˈri bɛˌkaɪt/
noun
1.
an amphibolic mineral, silicate of sodium and iron, occurring usually in feldspathoid rocks.
Origin of riebeckite
1885-1890
1885-90; named after Emil Riebeck (died 1885), German explorer; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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