Lush Green Prehnite Flat Teardrop/ Briolette BeadsPrice is for 16 inch of these green quartz. Each teardrop measure 15mm x 10mm x 6mm . All are top drilled and ready for stringing. Some of the beads have speck which are natural inclusions of quartz. There are about 27 highly polished beads . Quartz is abundant, solidified from volcanic lava and composed of oxygen and silicon. Many other semi precious stones are in the quartz family, producing beads in almost every colour. Quartz crystal was important