Handmade with love and attention to detail, this natural green agate is supported on a sterling silver chain, this necklace will flawlessly complement your everyday style. Chalcedony is a cryptocrystalline variety of quartz. It comes from the Latin word chalcēdōnius. It is a variety of agate and a natural form of silicon dioxide of silica. ... There are many varieties but the main kinds of Chalcedony are blue, grey, and white. Chalcedony meaning is stability and balance Great gift for anyone who Green Onyx Emerald Necklace Gift, Emerald Green Onyx Necklace For Gift, Sterling Silver Necklaces With Natural Stones For Her, Dainty Sterling Silver Crystal Necklace For Gift, Green Onyx Gemstone Round Necklace, Green Onyx Gemstone Necklace, Quartz Natural Stones Necklace As Gift, Quartz Natural Stones Necklace For Gift, Minimalist Agate Gemstone Necklace