Loparite, Alluaiv Mountain, Murmansk Oblast, Russia

Loparite interpenetrant twin in matrix. Loparite is a rare earth element (REE) which may contain cerium, niobium and/or thorium. This is a very sharp crystal with excellent contrast to matrix. Ex Steve Potvin collection #1992. From Alluaiv Mountain, Lovozero Massif, Murmansk Oblast, Russia. SOLD