Mountain and Moon Alexandra Earrings in Green. Mountain and Moon Alexandra Earrings in Green. 24k micron gold plating. Post back closure. Natural green onyx stone. Hammered finished and rava bead detail. Lead & nickel free. Micron plating lends durability and polish to your jewelry collection, covering each piece with a layer of gold that's 40-times thicker than its flash plated alternative. Measures approx 1.5 in length. Imported. MMOR-WL8. ALEEAR19-GGO.