This selenite and black tourmaline pendant are made from natural stones and the size will vary amoung each pendant. Each piece will be unique to you! Every crystal finds its way to its correct home, and owner. This pendant will come on an 18" silver plated chain for immediate wear! This is an incredibly powerful crystal piece that provides energentic protection to the wearer. Black Tourmaline repels and blocks negative energies, while selenite keeps it cleansed.