Tungsten and stainless steel necklace. Faceted design make the tungsten part so shiny and charming.Nice to march sweater. Tungsten and stainless steel necklace* Tungsten Carbide Properties (always see precautions in FAQ)* Hardest metal on earth* Extremely scratch-resistant* 4x harder than Titanium* 5x harder than steel* 10x harder than 18k gold* Highest melting point of all metals 2780°C* 9 Mohs ...