Polyhedral bulk moduli from high pressure spectra

6 Polyhedral bulk moduli from high pressure spectra 

Elastic constants of minerals are the key to understanding geophysical properties of the Earth s interior. Bulk modulus and rigidity parameters, for example, influence the velocities of seismic waves through the Earth. Numerous experi- 

The bulk modulus of a mineral, k, represents the pressure-dependence of its molar volume, V, defined by 

Several empirical equations of state (EOS), representing correlations between pressure and molar volume data have been defined, one of which is the Birch-Mumaghan EOS, 

Equations (9.4) and (9.5) indicate that an experimental technique providing pressure variations of a volume-related parameter may be utilized to estimate 

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