Dance floor powder?

What’s that stuff called that they sprinkle on dance floors, and what purpose does it serve?

It’s chalk, and it’s there to keep the floor from becoming slippery.

I always thought it was cocaine shaken loose by the dancing.

Do you mean rosin?
And to provide the right amount of grip.

amarinth is right. The floor can get really slippery without rosin, and trust me, that’s not fun.

Dance floor wax. Comes in a little shaker can like Comet Cleaner. Gotta have a slick dance floor for all the right moves.

Hmmmm… the same stuff as shuffleboard wax?