Bone & glass necklace

I really don’t know what to make of this necklace. Any help welcome please.
It looks to be a mish-mash of bone , metal and glass. To begin with I thought it was modern souvenir stuff but the glass beads look to be old Czech coated ones as the coating is worn off and they are random coloured glass underneath.
The green ones are dyed bone, the yellow I’m not so sure of. There is a grain but it’s very dense and close. The tapered ones almost look like resin.
I thought maybe random beads someone has thrown together but if so they have been together a long time judging by the dirt.
The glass beads have large holes and it is all strung on cord with no clasp.
Help please as I am clueless on this one. Thankyou

 

Anyone? Yoohoo?

 

What about the beads makes you think bone rather than wood?

 

Could be!. I’ll have another look. A couple have white showing through so I’ll look at that through a loupe.
The yellow don’t feel like wood and the green I was looking at the dots.

 

I love the colors! Is the metal soft, like spelter?