All symbols in the SiC structures have a particular that means: The number three in 3C-SiC refers back to the three-bilayer periodicity of your stacking (ABC) as well as the letter C denotes the cubic symmetry of your crystal. 3C-SiC is the only possible cubic polytype. The wurtzite ABAB. Klaproth https://rafaelsqokg.eveowiki.com/1594836/the_al_and_o_chemical_formula_diaries