(SiO2)2 single point Gauissan smear 1.0 4.17380000 0.00000000 0.00000000 0.00000000 4.17380000 0.00000000 0.00000000 0.00000000 2.66630000 Si O 2 4 Direct 0.00000000 0.00000000 0.00000000 # 1 Si1 0.50000000 0.50000000 0.50000000 # 2 Si1 0.30670000 0.30670000 0.00000000 # 3 O1 0.80670000 0.19330000 0.50000000 # 4 O1 0.19330000 0.80670000 0.50000000 # 5 O1 0.69330000 0.69330000 0.00000000 # 6 O1