Compositional data of clinopyroxene crystals standards analysed by electron probe microanalyses for major element oxides and by Mossbauer spectroscopy for iron valence and unknown clinopyroxene crystals from Iceland and the Azores . These data were collected in support of research described in the following preprints: https://doi.org/10.31223/X5CT03 and https://doi.org/10.31223/X5N959

Major and trace element data for olivine- and plagioclase-hosted silicate melt inclusions, their host minerals, and associated matrix glasses, from Midfell, Snaefellsjokull and Oraefajokull, Iceland. Melt inclusion compositions are provided as measured, and corrected for post-entrapment crystallization. Reflected light images of the melt inclusions.

FWHM of coral skeletal samples from 7 coral genotypes cultured in an aquarium at seawater pCO2 of 180, 260, 400 and 750 µatm and at seawater temperature of 25 and 28 degrees C (39 samples total). Data were collected to determine how environmental conditions influence disorder in the aragonite lattice of coral skeletons. Data were collected between August 2020 and December 2022 by Phoebe Ross, Celeste Kellock, Cristina Castillo Alvarez and Nicola Allison and interpreted by Phoebe Ross, Celeste Kellock, Cristina Castillo Alvarez, David Evans, Nicola Allison, Adrian Finch, Kirsty Penkman, Roland Kröger, and Matthieu Clog.