Chalcedony is a member of the quartz family and is found in a variety of colors including white, blue, pink, purple, green, and orange. It is typically translucent or opaque and has a waxy lustre. Chalcedony is found all over the world and is relatively inexpensive. 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 silica. Chalcedony is compact and microcrystalline. There are many varieties but the main kinds of Chalcedony are blue, grey, and white. Chalcedony is symbolic of stability and balance. Chalcedony is believed to take its name from the Greek port of Chalcedon which is known today as Kadikoy in Turkey.