“ Tourmaline Auction– Exclusive footage from deep inside Nuristan’s Bargi Matal, where the legendary Pachigram mines unveil some of Afghanistan’s most vibrant and world-class tourmaline gemstones. Pure, untouched, and bursting with natural color — these rare treasures stunned buyers as they sold for an extraordinary 140.5 million Afghanis.” «دا ځانګړې او نایابه ویډیويي صحنې د بیروجو د عالي بولۍ څخه دي، چې د نورستان د برګي متال د پچيګرام له مشهور او تاریخي کانونو اخیستل شوې دي. دلته هغه رنګین، ځل

Tourmaline obsession! Tourmaline forms in all colors of the rainbow however fancy red/ purple and blue greens are some of the rarest and most valuable. Not only is it beautiful but also useful in technology. Tourmaline is very piezoelectric (similar to quartz crystals) which means that when a mechanical stress is applied it generates on minute electrical charge, this unique feature has many practical applications in industry such as being used in pressure sensitive gauges and sensors for testing