David Hospital·CC BY-SA 4.0·Wikimedia

Franconite

Na₂Nb₂O₅(OH)·9H₂O

IMA approved

構成

Composizione (% in peso)

O

Nb

Na

OOxygen48.9%
NbNiobium37.8%
NaSodium9.4%
HHydrogen3.9%

語源

名前の由来 Francon quarry.