[ ahr-vid-suh-nahyt ]
/ ˈɑr vɪd səˌnaɪt /
a sodium-rich amphibole, occurring in green to black crystals in alkalic rocks.
Origin of arfvedsonite
1830–40; named after J. A. Arfvedson (died 1841), Swedish chemist; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019