These lovely matte finish striated agate beads were hand cut in Afghanistan, and range in natural patterns, but are mostly black with grey and off-white lines. 8mm diameter x 5mm thick, 85 beads per strand, 16 inches long. Beads are 8mm smooth rondelles, with a soft matte finish. Holes are .8mm. See other Afghan semi-precious stone beads listed. They design well together, as shown in the last photo, some bracelets mixed with Thai silver.