Dims: 1.81x1.11x0.59" (4.59x2.81x1.50cm)
Wt: 0.86oz (24.4g)
Kola peninsula, Russia
This cryolite specimen has enough impurities as to appear nearly gray. It is translucent, and while it is clearly crystalline, there are no indications of crystal surfaces. The color and transparency varies quite a bit, from essentially opaque gray to nearly transparent and colorless. The specimen has a bonus mineral - along one edge is a micro-crystalline crust of the rare mineral gagarinite (NaCaY(F,Cl)6), named after the first Cosmonaut, Yuri Gagarin. It is a dirty pink in color.