Figure 4
(Top) The high-pressure evolution of the unit-cell volume of leucophoenicite. The refined Birch–Murnaghan equation of state (truncated to the second order) is shown. (Bottom) The normalized pressure (Fe) versus the Eulerian strain (fe) plot [see Angel (2000) for further details]. The quasi-horizontal linear fit suggests a second-order truncation of the BM-EoS. |