This piece of the moon is mostly black with approximately 8 small clasts in the dark melt.  This is from a slice of NWA 13119(Northwest Africa).  Set in a hypoallergienic, tarnish resistant sterling silver with a pure silver bezel.  A 20 inch heavy weight sterling silver rounded box chain, 1.8mm, is included. It is tarnish resistant silver, not plated, and does not contain any nickel so it is hypoallergenic. I can make this chain in any length.