8

Si  -0.353399 1.63995 0.010024
Si  -0.314622 -1.27891 0.0127236
Al  -0.353399 1.63995 0.010024
Al  -0.314622 -1.27891 0.0127236
O   -0.0493011 -1.30622 1.73994
O   0.202753 0.25012 -0.602662
O   0.558385 2.90578 -0.507828
O   0.624205 -2.57175 -0.674946