- Small Cabinet, 7.5 x 6.4 x 5.8 cm
- Vishnovogorsk, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
A fine specimen covered with sharp, glassy and partially gemmy, burnished brown pyrochlore octahedrons aesthetically covering matrix on this very fine specimen from Veshnovogorsk, Ural Mts., Russia. Pyrochlore is an uncommon niobium oxide. Ex. Fersman Collection.