dust item

The dust item is for when you kill Ganon, and the dust pile appears. Din's Fire I believe is not yet implimented.

It was, but it was taken out.

But does anyone know what it will do when put on it again?

Probably something similar to Din's Fire in OoT.

Din's Fire is already back in at a later beta (beta reports).

It basically creates a circle of fire around the player that spreads and kills enemies.

And triggers the Dins fire flags.