Tourmaline, var. Dravite-Uvite in Mica Schist
L: 4 x W: 3 x H: 2.5
Locality: Badakshan, Afghanistan
Very unusual dark blue tourmalines with hexagonal cross-section, tabular perpendicular to the c-axis, and doubly terminated with two pyramids. Very rare habit of tourmaline
from freak locality.