4 Lattice="3.0 0.0 0.0 0.0 3.0 0.0 0.0 0.0 3.0" Properties=species:S:1:pos:R:3:forces:R:3 energy=-2.56975721478 stress="5.066815052017645 0.8426681552165511 1.727084036918285 0.8426681552165511 -6.586521026198383 2.535261551765079 1.727084036918285 2.535261551765079 -4.0514072794278695" pbc="F F F" Si 0.24849743 0.25911890 0.27521252 13.71620481 -3.76603509 -1.95442390 O 1.69877714 1.60881314 0.13250256 -5.73515323 13.22910847 -11.80997536 O 1.60031152 0.05442580 1.35431870 -9.53593162 -14.98001376 8.84376472 Si -0.21988289 1.63572127 1.55791531 1.55488004 5.51694039 4.92063455