Mojave stone, a composition of unusable gemstones, crushed, Bronze being the binder, slabbed, cut and polished.   Purple Turquoise, Calcite and Bronze.  This all silver cuff measures 6" around comfortably fitting up to a 7"wrist.  Design measures 2 1/2"long x   2 1/2" wide.  Cuff width 1 3/4".