This Tourmalinated Quartz and Black Onyx Necklace is full of protection magic. This necklace features black tourmaline in quartz with a small black onyx crystal set in .925 silver with an open back. Clear quartz has three major properties: Amplification, programmability, and magnification. It can be used to boost the energies of other stones and is ideal for crystal grids. Clear quartz activates the Soul Star Chakra, your connection to the stars and other dimensions. Black tourmaline is one of the most protective gemstones on Earth and keeps you energetically shielded. Black onyx is protective and helps absorb and transmute low vibrations. If protection is what you desire more of, this necklace is your offering. This listing is for one (1) Tourmalinated Quartz and Black Onyx Necklace. Measures about 21″ full length and can adjust as short as 17″.