Wiktionary
irtyshite
n. (context mineralogy English) A hexagonal mineral containing sodium, tantalum, niobium, and oxygen.
Usage examples of "irtyshite".
Roclawzi and Irtyshites had never been allies, with the Reithrese on the doorstep to the Roclaws, there was no way I could have convinced any Roclawzi to join me in fighting in Irtysh, even if I felt that was a good idea.