New vintage genuine polished stones earrings

New vintage genuine polished stones earrings Colours: mustard yellow, black, reddish brown, olive green brown, black brown. opaque polished stones. Not sure what kind of stones but I can see striatings and inclusions in some of them. I think they are all semiprecious. New vintage c. 1980s. Probably made in China. Gold tone metal sleeper hooks, hypoallergenic. 25 mm string of stones. 40 mm entire length. 7-10 mm stones Boho, natural, rustic style.