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arfvedsonite

[ahr-vid-suh-nahyt] /ˈɑr vɪd səˌnaɪt/
noun, Mineralogy
1.
a sodium-rich amphibole, occurring in green to black crystals in alkalic rocks.
Origin of arfvedsonite
1830-1840
1830-40; named after J. A. Arfvedson (died 1841), Swedish chemist; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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