Citation: Talla, D.; Wildner, M. (2019). Investigation of the kieserite-szomolnokite solid-solution series, (Mg,Fe)SO4*H2O, with relevance to Mars: Crystal chemistry, FTIR, and Raman spectroscopy under ambient and martian temperature conditions Note: Sample Mg0.55Fe0.45. American Mineralogist, 104, pp. 1732-1749.