“Chlorellestadite (bright gray; EDS confirmed) surrounded by an unidentified Ca-silicate mineral (darker gray; probably larnite) from the type locality for chlorellestadite. This sample is holotype material sourced from the authors’ collection. Associated minerals per the authors’ analyses (not pictured) are larnite, spurrite, chlormayenite-wadalite, oldhamite, jasmundite, periclase, ettringite, and hydrocalumite. The image is a back-scattered electron image of the polished sample, with brightness positively correlated to average atomic number. The image was captured using line averaging with a cycle time of 1min operating in variable pressure mode at a pressure of 25Pa and an accelerating voltage of 20KeV. Imaging was performed on a Zeiss Supra-35VP scanning electron microscope at the Center for Advanced Microscopy and Imaging at Miami University in Oxford, Ohio. Ex. E. Galuskin. Chris Emproto collection and photo. ”

“Chlorellestadite (bright gray; EDS confirmed) surrounded by an unidentified Ca-silicate mineral (darker gray; probably larnite) from the type locality for chlorellestadite. This sample is holotype material sourced from the authors’ collection. Associated minerals per the authors’ analyses (not pictured) are larnite, spurrite, chlormayenite-wadalite, oldhamite, jasmundite, periclase, ettringite, and hydrocalumite. XEDS analysis in child photo displaying chlorellestadite chemistry. The image is a back-scattered electron image of the polished sample, with brightness positively correlated to average atomic number. The image was captured using line averaging with a cycle time of 1min operating in variable pressure mode at a pressure of 25Pa and an accelerating voltage of 20KeV. Imaging was performed on a Zeiss Supra-35VP scanning electron microscope at the Center for Advanced Microscopy and Imaging at Miami University in Oxford, Ohio. Chris Emproto collection and photo. ”