Board Thread:General Discussion/@comment-1031724-20170228063207/@comment-1031724-20170303183310

Aggression25 wrote: We're not sure if the Mind Stone can even be touched by mortal hands without any drawback. And we won't know until it's been removed from the Vision.

When it's removed from Vision, Thanos is taking it (and he's powerful enough to handle them as Asgardians are), and putting it in the Infinity Gauntlet.