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<"Above bin Laden's head there's a hole in the rock; that makes me think the rock is pretty soft. It's metamorphic rock, perhaps talc-carbonate schist, or ... hmmm ... my first impression was that it's a greenstone. Those two rocks occur together, and they're both pretty much exclusive," DiPietro says after studying the photos awhile. I allow him to continue musing. "They're both pretty common in the suture zone, which makes me think it's around Jalalabad -- Jalalabad or Kabul. My initial guess would be near Jalalabad."
