Dims: 1.1" x 0.2" x 0.1"(2.8 x 0.4 x 0.3 cm)
Wt: 0.7 g
SIGHAR, Northwest Frontier Province, Pakistan
This crystal, though rather small, is extremely clear and is double-terminated. It has a pale blue coloration and is, of course, transparent, with a vitreous luster. It occurs in a hexagonal prismatic form, and has basal terminations. One of the terminations is imperfectly formed, due to interference of foreign material, where the crystal was attached to its host rock. There is a straight, shallow groove about 0.3" (0.7 cm) long near the termination, where another crystal barely intersected it at an angle. Its form is excellent, though there are a few tiny, conchoidal "dings" near the terminations. The termination that has the least interrupted form shows some natural wear, but is intact. I have affixed this crystal inside a domed thimble box with a removable putty for display.