Rarity - Becoming rare in good color and exceptional clarity.
Treatment - Heat
Origin - Shigar valley, Skardu Mine, Pakistan.
Prospecting in a region with near vertical cliffs that rise 3,000 to 4,000 feet or higher is a nightmare. Mining a deposit in an environment like this is even worse. At such elevations, pockets are practically always frozen, internal combustion engines do not operate, the air pressure is too low for pneumatic equipment, and the mining season is generally very short.