Vintage Beaded Necklace Double Strand w/ Plaque Marble or Glass

Stunning statement necklace made of 2 strands or balls that could be either marble or glass. They are cold to the touch so not plastic or Bakelite. Heavy at approx. 320 grams Contrast color beads in the front with black bard and gold-tone beads between It culminates with a divided color pendant. No clasp as they are long and fit over the head. Nice sheen Approx 20"" drop. About 38-40" if you measure all around. Beautiful condition with no damage.