This necklace has many types of stones:  hematite, citrine, magnesite, tiger's eye, amethyst, and silver pewter spacer beads. It is a heavy necklace because the bead size is 12mm in places and because hematite is heavy. The 20 inch necklace comes with a 2 inch extender and is finished with a toggle clasp.  

Restorative Properties:  Howlite absorbs negative energy, calms stress, and promote balance. Citirine promotes prosperity and abundance, helps creativity, and transforms negative energy. Magnesite, the turquoise wannabe, promotes peace, tolerance, and a positive attitude. Tiger's eye helps motivation and provides energy and protection. Amethyst is believed to protect the wearer from intoxication.