Numerous examples are known with cubic, tetragonal, rhombohedral, and orthorhombic symmetries. Solid C crystallizes in monoclinic, hexagonal, rhombohedral, and face-centered cubic (fcc) polymorphs at room temperature. Brilliant opaque monoclinic, or rhombohedral, crystals sublimed as a result. Chabazite crystallizes in the triclinic crystal system with typically rhombohedral shaped crystals that are pseudo-cubic. It crystallizes in the trigonal - rhombohedral crystal system. It crystallizes in the trigonal system, and cleaves with rhombohedral carbonate cleavage in three directions. Cadmium chloride forms crystals with rhombohedral symmetry. The hexagonal crystal family consists of two lattice systems&colon; hexagonal and rhombohedral. Two crystalline forms are known, rhombohedral and hexagonal. The Bravais lattices in the hexagonal crystal family can also be described by rhombohedral axes. Boron has a complex rhombohedral crystalline structure (CN 5+). It has a rhombohedral polyatomic crystalline structure (CN 3). A rhombohedral lattice will result from lattice angles other than these. It has a rhombohedral crystalline structure (CN 3). Arsenic, antimony, and bismuth all have rhombohedral crystal structures.