Make a dramatic statement in your designs with the help of the smoky quartz 8mm round beads from Dakota Stones. Available by the strand, these gemstone beads are perfectly round and quite versatile. They are perfect for matching necklace and bracelet sets. Smoky quartz is named after its smoky color, which is caused by gamma rays. The color of smoky quartz ranges from brown to black and sometimes smoky gray. Mined in Brazil, the stone is believed to enhance organizational skills and so is good to have around the workplace or home office.