Jewelry Vintage Black Tourmaline Obsidian Necklace Poshmark Limited Edition Snake Serpentine Necklace, Black Tourmaline, Ruby and Silver Snake Necklace With Onyx Stone, Detailed Artisan Craftsmanship Limited Edition Snake Serpentine Necklace, Black Tourmaline, Ruby and Vintage Gold Tone Black Eye Snake Serpent Crystal Rhinestone Bendable. Overview: Black tourmaline crystal reduces negative emotions, helps release stress and keeps your mind from straining. This is also call "Stone of Protection", it's worn to protect yourself from physical attacks, negative energy, electromagnetic fields and radiation. Specification: Gender: Unisex Personalized: Non personalized Metal Color: White Gold Plated Chain type: Cable Chain Stone Shape: Teardrop pear Theme: Snake Age: 20 30 years old,30 40 years old,40 60 years old,60 years old Occasion: Party,Dating,Anniversary,Daily,Other occasions YFN Metal Type: 925 Silver YFN Chain Length: 18\'+2\' Extender