Storing (pops) rosin in a cloth?

[gapiro]

Hey
it has been recommended to me that I store my pops rosin in a cloth (in the tub) 
However the cloth I have used (a glasses cloth) is just sticking to it
Is there a type of cloth you'd recommend?

 

[guyl]

Mine came inside a kind of grease-proof paper wrapper. Left it in that inside the box. And put the whole thing in a plastic bag - ideally stored upright! Wouldn't bother with a cloth myself...