Figure 3
From: Post-tilleyite, a dense calcium silicate-carbonate phase
Pressure dependence of the unit-cell volume of Ca5(Si2O7)(CO3)2 tilleyite. Solid squares correspond to powder XRD data, and empty blue triangles and green circles correspond to single-crystal XRD data. Fits to all the experimental results for the low- and high-pressure phases are depicted as solid and dashed black lines, respectively. Results from DFT calculations are represented with red lines.
