Glass to sand is a transfiguration spell that causes any glass that comes within a certain radius of the caster to be transfigured into sand. It looks blue, almost like water, and surrounds the caster in a half-circle.[1]

Known uses

Behind the scenes

  • This spell only appears in the film adaptation of the Duel in the Ministry Atrium. However, it could be a derivative of the Shield Charm, like Repello Inimicum or Fianto Duri, as the effect is almost the same in Harry Potter and the Deathly Hallows: Part 2. The only difference is that, in the last movie, the spell, instead of disintegrating sand, disintegrates human wizards.
  • As glass is made principally from sand to begin with, the actual purpose of this spell may be more along the lines of disintegration, or transfiguration into a simpler state, rather than specifically glass-to-sand but it is possible that because glass is made from sand the shield simply reverts something from its current state back into what it was made from.