Aventurine is a versatile stone, available in lovely, muted shades of green, red, orange, and peach. Some green aventurine can be used as an inexpensive substitute for jade, while red aventurine has some similar shades to carnelian. Beadaholique.com carries Aventurine in popular round, rectangle, and rondelle shapes, but we also have fun carved beads that make whimsical pendants.