Turn your jewelry into one-of-a-kind wonders with the Indian red aventurine 10mm coin beads. Aventurine is known as the stone of chance or luck. It is a quartzite usually containing mica. These coin beads are the perfect way to add color to designs. Showcase them in necklaces and bracelets. Gemstone beads are the perfect way to add natural beauty to your jewelry designs. Since gemstones are formed naturally, each bead is a unique treasure. These gorgeous gemstone beads are available by the strand, so you'll have plenty to work with.