|  | 
Definition of Franconite
1. Noun. (minerology) A monoclinic white mineral containing hydrogen, niobium, oxygen, and sodium. ¹
¹ Source: wiktionary.com
|  | 
1. Noun. (minerology) A monoclinic white mineral containing hydrogen, niobium, oxygen, and sodium. ¹
¹ Source: wiktionary.com