Grand Flat Agate Button Knotted Bead String - Large 30mm x 6mmPrice is for 14. 5 string of these flat agate button, the beads are knotted and highly polished. Each bead measure 30mm x 6mm. There are 12 beads in a string. These beads comes in light colour of purple,pink,yellow and white like the picture. Agate is one of the most common bead beaders use because it is readily available in an abundance of styles and shapes. What is agate? Agate is a variety of micro crystalline quartz that forms in layers and many