Diamond cubic strong isotropic property. Namely, for any two vertices "x" and "y" of the crystal net, and for any ordering of the edges adjacent to "x" and any ordering of the edges adjacent to "y", there is a net-preserving congruence taking "x" to "y" and each "x"-edge to the similarly ordered "y"-edge. Another (hypothetical) crystal with this property is the Laves graph (also called the K crystal, (10,3)-a, or the diamond twin). The compressive strength and hardness of diamond and various other materials, such as boron nitride, is attributed to the diamond cubic structure. Similarly truss systems that follow the diamond
Crystal Light Crystal Light launched Pure Fitness, a "naturally-sweetened" low-calorie fitness drink mix which is sweetened with sugar and Truvia, a sweetener derived from the stevia plant. It is currently sold in "On The Go" packets. In 2011, Crystal Light Pure Fitness was renamed Crystal Light Pure, and three additional flavors were introduced. In April 2012, several Crystal Light varieties were added to the line of sodamix syrups for SodaStream home soda makers. Kraft Foods, the parent company of Crystal Light, offers a product locator on its website to help locate flavors in a desired location. Crystal Light is sold in the