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
Coca Crystal Coca Crystal Coca Crystal (December 21, 1947 – March 1, 2016) was an American television personality and political activist. She was best known for her weekly cable-access variety show "The Coca Crystal Show: If I Can't Dance, You Can Keep Your Revolution", which ran from 1977 to 1995. Born as Jacqueline Diamond on December 21, 1947, to Jack Diamond, owner of J. Diamond Furs and Rita Dunn, a former fur model. She was born in Manhattan and raised in Mamaroneck. Starting in 1969, she was a contributor to the East Village Other (EVO) and the name Coca Crystal was created