Necklaces / Pendants by Frances Levis This necklace features beautiful hand faceted labradorite beads which have subtle blue/green flashes running through them. They are approx 5-6mm in diameter. Labradorite is a member of the quartz family and are similar to rainbow moonstone. Features Primary Material : silver Other Materials : labradorite beads Length (inches) : 18 One of a Kind : No Metal : sterling silver Hallmarked : Yes Cleaning InstructionsTo clean silver with labradorite/diamonds: Use silver dip (which is safe to use on labradorite) to remove tarnish and bring back the lustre of silver. Wash and dry thoroughly after using silver dip.