. Supp, . Mat, and . Fig, S4 Relative thermal expansion of the cell parameters a) a/a293 K, b) c/c293 K and c) V/V293 K ratio as function of T for OCN calcite (black), synthetic MgCc10 (yellow), MgCc24(blue), MgCc40 (purple and pink), p.50

. Supp, . Mat, and . Fig, S6 Full-width at half maximum of the Raman modes of synthetic Mg calcites as a function of composition in the range 0-50 mol% MgCO3, Blue plus: low-Mg synthetic calcites, Red plus: high-Mg synthetic calcites, OCN calcite and OCN dolomite are also shown