Ideal for all your jewelry making and beading projects. This semi-precious bead is a natural wonder. Agate is a microcrystalline of quartz with bands of color. It is one of the most plentiful stones on earth. This bead will add the attention-grabbing factor to your project. Use these stunning beads to design necklaces and bracelets, adorn clothing, embellish cards or scrapbooks, decorate everyday items and more.Details:Black8 mm bead size8" (20 cm) string length12 packs (28 beads per pack, 336 total beads)RoundQuartz