A look at Spruce Pine, NC, the obscure Appalachian source of the world’s purest natural quartz used in manufacturing silicon for computer chips (Vince Beiser/Wired)

Vince Beiser / Wired:
A look at Spruce Pine, NC, the obscure Appalachian source of the world’s purest natural quartz used in manufacturing silicon for computer chips  —  FRESH FROM CHURCH on a cool, overcast Sunday morning in Spruce Pine, North Carolina, Alex Glover slides onto the plastic bench of a McDonald’s booth.