Miaskite

Miaskite

 

(named after the city of Miass, Cheliabinsk Oblast, RSFSR), an igneous rock; a biotitic variety of nepheline syenite consisting of nepheline, albite, microcline, and lepidomelane (ferrous biotite) with an admixture of apatite, zirconium, ilmenite, and other minerals. Miaskite was discovered and first studied in the V. I. Lenin Il’men’ Preserve.

References in periodicals archive ?
Mineral associations from Burpala are typical of alkaline massifs with an intermediate position between miaskite and agpaite alkaline rocks; the associations are similar to the mineralogy of alkaline pegmatites from Langesundfjord (southern Norway) and Colorado (USA).