Quartz Crystal Beads Strands, Rock Crystal Beads, Faceted(128 Facets), RoundSize: about 10mm in diameter, hole: 1mm; about 39pcs/strand, 15.5 inch.Clear quartz is named by its glittering and translucent appearance. It's known as the king of quartz due to the largest number and the most widely used. It's ideal for gorgeous and noble jewelry design.