Prehnite beads have been cut into rounded tube shapes that have an oval look. The beads have some opacity and black inclusions for the popular 'Seaweed' look. Beads measure 6.8-10mm long, and are about 3.5-5.5mm in diameter. They come on 13.5 to 14 inch long strands.
NOTE: Because this is an economy strand there may be broken, poorly shaped or mis-drilled beads on each strand.