Vintage pearl/stone necklace help...

the large set of pearls def don’t feel gritty like pearls and are all the same shape but knitted between each and heavy...what are they made of?? I’m assuming they aren’t real pearls because they feel smooth....

The smaller set are signed sterling on
The clasp...and the stone necklace is heavy and knitted between each but idk what kind of stone??

Anyone??

 

The top ones are hand knotted glass pearls. They used to use sterling clasps sometimes even on the fakes, so that's the second set. They could be from anywhere. They're a good 30 years older than the top ones. It's set with an aurora borealis rhinestone.

The stone beads are what I'd call Random Pretty Rock. I'd bet on some sort of jasper, but one of the rock hounds might know better.