#Metal oxide bond lengths for some selected elements.
#All values assume a coordination number of 4.
#From: A. Navrotsky, K.L. Geisinger, P. McMillan and G.V. Gibbs,
# Phys. Chem. Minerals (1985) 11:284-298.

Bond Si O 1.623  2.0
bond Al O 1.750  2.0
bond Ge O 1.760  2.0
bond Ga O 1.840  2.0
bond Li O 1.950  2.0
bond Mg O 1.940  2.0
bond Na O 2.350  2.0
bond Fe O 1.990  2.0
