Trace elements in CaCO3 and fluid Table 2. Elemental ratios and partition coefficients for CaCO3 in deepsea conditions (Mg, S, Sr, and Ba between crystallized solids and fluid) PI: R. Gabitov (Miss. State) version date: 2020-03-25 (*) - KE Doener-Hoskins values cannot be used for aragonite-fluid partitioning because other carbonate minerals precipitated in those runs. Runs: ASW = Artificial SeaWater (Instant Ocean); other fluid samples are from the end of experiments; LP = low pressure run; RPI = runs performed at Rensselaer Polytechnic Institute Minerals: Ar = aragonite; MHC = monohydrocalcite; CaCO3-II = monoclinic calcium carbonate.