Tektite is obsidian-like glass formed during meteor strikes! Crafted by hand with premium (and sexy) 8mm matte black onyx, black obsidian chips, and sterling silver beads perfectly framing a raw tektite nugget. It is held together with a sterling silver lobster claw clasp (marked 925) and silver findings. This is meant to be worn near the neck and will dress up or down almost any look. Choose your length: 16, 18, 20, & 22 Each necklace is made to order and packed and shipped from Minnesota with both speed and care.