Vintage Necklace Hand Strung Glass Beads Gemstone Plus Bonus 5 Necklaces in all

This is a mixed lot of what I believe to be hand-strung necklaces...One is like a purple glass maybe amethyst, 1 is a swirled blue with grayish-white stones, One looks like tiny mixed gemstones, 1 is glass beads and then the bonus is a strand of an off-white rectangle-shaped stone, bone..not sure..don't think it's plastic... The necklaces are approx. 17.5" long when hanging except for the glass bead one and that hangs 12" long...The off-white rectangle-shaped one is 14" long. See all photos for more info.