Vintage Necklace Black Olive Bead Bakelite? Amber? 85 Grams

Description

This auction is for a vintage bead necklace acquired from an estate many years ago by my mother who was a vintage jewelry collector.
We have  no idea if the beads are Bakelite or Amber.
We know how to test with Simichrome for Bakelite, but the beads do not give the yellow color during this test.
As for amber, we cannot recognize this jet black if indeed it is amber. We tried with flash light on the beads and they do not show any other colors.
Only thing we know for sure is that the large olive beads are NOT plastic, as there is no seem any where.
The smaller faceted beads on the necklace might be plastic though.
The total weight of the necklace is 85 Grams and the length is 30".
Each olive shaped bead is 3/4" long.
We are listing this as an auction at a low start and you be the judge.
Two more similar items from mom's collection are also going to go up.