Tranquil Waters: Exploring the Healing Properties and Benefits of Blue Chalcedony Blue chalcedony is a sort of microcrystalline quartz known for its quiet blue tinge. It is a member of the chalcedony family, which includes an assortment of cryptocrystalline quartz gemstones. This gemstone can be tracked down in different shades of blue, going from pale sky blue to more profound shades looking like the sea.