Stone Choker Green Terra Cotta Unakite? 15" Silver Tone Necklace

Vintage necklace I believe the stone may be Unakite, not sure, but it's lovely See all photos This measures just a hair over 15" , choker statement piece No maker's marks, very good condition Again, not sure on the material, could be jasper, all i can tell you is that it's some sort of real stone natural materials real stone beads beaded jewelry