Chalcedonies varieties are rated at 6.5 - 7.0 on the Moh's Scale of Hardness, making all Chalcedony suitable for most jewelry applications. The sheer amount of colors and individually identifiable varieties that Chalcedonies are found in is immense, and because of this, different varieties of Chalcedony have been awarded different descriptive names. It can appropriately be said that any member of the Chalcedony family that exhibits a shade of orange can be categorized as an Orange Chalcedony. Such members include Jasper, Agate, and the popular reddish-orange variety of Chalcedony known as Carnelian. Generally the value of an Orange Chalcedony is determined significantly by the fashioning of the stone, with color saturation, level of translucence, and distinctive patterns also being important factors depending upon the Chalcedony selected.