... .Black Stone 2.Various shapes and sizes 3.Suitable for necklace and other accessories 4.Quantity:about86g/string We produce more ... , quartz,black stone,obsidian,crystal,jet etc. Our design includes round, tumble,star,CAB,rud disk, teardrop,tube, faceted or not ... expansion of trade to our mutual benefit.Factory Office 12mm round bead semi precious beads black stone