Women’s Sterling Silver necklace

161/2” long. I do not know what the beads/stones are made of. (Red center one, light pink, lemon colored, maroon and and orange/tangerine.) These beads might be made out of Lucite or Acrylic or a combination of both? I am still looking up some information on it. I bought this in Dallas, TX, second-hand. I like it, but don't wear it often!