Interatomic Distances Å

Bond Valence Sum (BVS)*

Distortion index

Al-O1

1.8567(3)

0.5735

Al-O2

1.8778(3)

0.5417

Al-O3

1.8885(3)

0.5263

Al-O4

1.8923(3)

0.5209

Al-O5

1.9011(3)

0.5087

Al-O6

1.9072(3)

0.5004

1.8872(3)

Σsi = 3.1715

0.7%