Handmade men's necklace: gray marble & wood

This necklace is bold! I handmade it from large marble tubes in a steely gray shade, interspersed with spheres of hand-cut wood, stained black. It's very geometric. The length is adjustable, the gunmetal clasp can be hooked on any ring of the matte aluminum chain, so it can be anywhere from 16.5 - 19.5" long.