Odd little necklace - thoughts welcome

Hullo!

I'm hoping for some insight on this odd little necklace. So - why do I say odd? It's very short. The clasp is unusual - a bit homespun. The beads are not really uniform and while they initially look shiny, the surfaces do have a bit of texture here and there. They don't feel like stone or glass - maybe ceramic or jet?

Many thanks for your time having a look and a mull.

 

A close cousin of wire wrapped jewellery, a home craft activity, or was. Checking eBay, I see India has gotten into it in a big way, more elaborate than most home grown products, but this necklace clearly not industrial level.

Beads could be ceramic; not likely to be jet. In what way do they not feel like glass?