|
Definition of Petscheckite
1. Noun. (minerology) A trigonal-hexagonal scalenohedral black mineral containing iron, niobium, oxygen, tantalum, and uranium. ¹
¹ Source: wiktionary.com
|
1. Noun. (minerology) A trigonal-hexagonal scalenohedral black mineral containing iron, niobium, oxygen, tantalum, and uranium. ¹
¹ Source: wiktionary.com