Friday mystery object #95

It had to happen; a mystery object on Friday the 13th – a day reputed to be unlucky. So with the theme of superstition in mind I have an anthropological object for you to identify:

I admit that this doesn’t look much different to the usual mystery objects, but this one is reputed to have certain powers. Can you work out what these powers may be and where in the world this superstition comes from? Of course, the first step will be to identify what the object actually is.

As usual you can put your suggestions, observations and questions below and I’ll do my best to answer.

Good luck!