The club head is made from Pumice and is very light in weight. It can only be a dance club it really is not suitable as a weapon. In one way I am rather disappointed. I feel I paid a little too much for it. You win some you lose some, most of my ebay risks pay off very rewardingly. Never the less it is a genuine piece. As I suggested it is covered in a red pigment that gets everywhere. Not one your wife will like.
I hope these picture give more idea of the stone.