Dragonfly-shaped pendant with rose quartz or green aventurine. A delicate metal dragonfly-shaped pendant, with rhinestones on the wings perched on a drop of rose quartz or green aventurine. Approximate measurements of the dragonfly pendant: 3.5 cm x 2.5 cm x 0.8 cm and 15 grams. Dragonfly: In many cultures, the dragonfly is a symbol of prosperity that attracts good luck, and it is also associated with peace and purity. A dragonfly can also be used as a protective amulet against lies, slander, and the cynicism of others, as according to North American mythology, the dragonfly is the one who punishes liars by sewing their mouths shut.