Badakhshan was an important trading center during antiquity. Lapis lazuli was traded exclusively from there as early as the second half of the 4th millennium BC. Badakhshan was an important region when the Silk Road passed through. Its significance is its geo-economic role in trades of silk and ancient commodities transactions between the East and West.
Named after the country where it was found and the main locality for the lovely gemmy blue crystals like the one in the photo, it is a metamorphic mineral, born in the crushing heat and pressure of the ongoing mountain building event that is upthrusting the Himalaya, Hindu Kush, Altai, Pamirs etc into contorted folds of squished transformed rock. It was first discovered in 1968 in the Lapis Lazuli mine of Sar-e-Sang, Badakhshan Province where it cuts veins of another blue mineral called lazurite, which remains the main locality. It formed as sea bottom limestones turned into marble.
Colours include colourless and yellow alongside these vivid blues, and the hardness is medium at 5.5-6 on Mohs scale, the same as feldspars. The mineral glows bright orange in UV light, as electrons are excited by the energy, jumping up a level and giving off the energy as visible light as they fall back down. Other sources include Germany, Italy and Siberia. The specimen in the photo (4.2 x 3.8 x 3.7 cm) is Afghan.
AFGHANISTAN, Argo : Afghan villagers pray over the site of a landslide in the Argo district of Badakhshan province on May 3, 2014. Rescuers searched in vain for survivors May 3 after a landslide buried an Afghan village, killing 350 people and leaving thousands of others feared dead amid warnings that more earth could sweep down the hillside. Local people made desperate efforts to find victims trapped under a massive river of mud that engulfed Aab Bareek village in Badakhshan province, where little sign remained of hundreds of destroyed homes. AFP PHOTO/SHAH Marai
Afghanistan, Pakistan and northern India were rocked by a 7.5 magnitude event yesterday afternoon that struck some 210km beneath the Hindu Kush, and dozens of fatalities have already been reported across the region, though the remote and inaccessible nature of many of the affected areas means that the toll will certainly rise over the coming days as emergency workers begin to reach them. Early reports are suggesting that the damage is extensive. It is the strongest quake in recent decades in the mountainous and war wracked country. The shaking was felt as far away as Delhi, where buildings were evacuated and the metro ground to a halt.