chal·ce·do·ny | kal-ˈse-də-nē
A greyish-blue quartz
This stone is a cryptocrystalline form of silica. It is composed of quartz and morganite. Chalcedony’s color is a grayish blue. This stone is named after the ancient Northwestern Turkey town off the Bosporus, a narrow strait of waterway that creates the continental boundary between Europe and Asia. Millennia ago, chalcedony was used by ancient men during the Bronze Age to create man-made weapons and tools such as knives. Today, this blue stone is used in a variety of pieces of jewelry, including necklaces and pendants, earrings, bracelets, and gemstone and fashion rings. Chalcedony jewelry pieces are often set in silver or white gold, though the blue stone does look great with yellow gold, too. Chalcedony is a very versatile stone for jewelry pieces, and it looks great when you’re wearing casual wardrobes including jeans, or when you are dressed up for a night out on the town. Chalcedony is a very hard stone and ranks at 7 on the Mohs scale.