This pair of handmade earrings features 9mm green onyx briolettes and 3mm blue topaz beads. Green Onyx is a semi-opaque green variety of chalcedony. Blue topaz is the December birthstone and its lovely blue color complements the green onyx perfectly. These dangle earrings catch the light beautifully. The wire used in the making of these earrings is a steel-based wire that has been plated with silver and gold toned metals. The wire contains no nickel, lead, or cadmium.