Natural Untreated Zambian Emerald,Tourmaline .925 Silver Bracelet.
Natural Untreated Zambian Emerald,Tourmaline and Sapphire Gemstone .925 Silver Bracelet. Emerald Gem is Birthstone of May. Pickup from Rootyhill / North Sydney or $ 10 to post anywhere in Australia. General Info on Emerald Color: green Hardness: 7.5 - 8 Refractive index: 1.57 - 1.59 Density: 2.67 - 2.75 Chemical composition: Be3Al2(SiO3)6 Crystal structure: hexagonal Lustre: vitreous Origins: Colombia, Zambia, Brazil, Madagascar, South Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA