# SiO2 alpha quartz 9 atoms 2 atom types 0 4.913400 xlo xhi 0 4.255129 ylo yhi 0 5.405200 zlo zhi -2.456700 0.0 0.0 xy xz yz Masses 1 28.0855 2 15.9994 Atoms 1 1 2.308807 0.000000 3.603467 2 1 -1.154403 1.999485 1.801733 3 1 -1.154403 -1.999485 0.000000 4 2 1.375998 1.140800 4.245244 5 2 -1.675961 0.621249 7.848711 6 2 0.299963 -1.762049 6.046977 7 2 0.299963 1.762049 -4.245244 8 2 -1.675961 -0.621249 -0.64177 9 2 1.375998 -1.140800 -2.443511