This bracelet features 3 crystal quartz gemstones with Obsidian. Crystal quartz are powerful stones that enhance healing, mental energy and meditation. Black Obsidian are a strongly protective gemstone to diminish negative energy. Our collection features meaningful gemstones with copper accents. This beaded bracelet slips on the wrist easily and stacks nicely with others. Materials: Copper Gemstone: Crystal Quartz and Obsidian 8mm Length: 7 1/4 inches.