Citation: Thomas, S. M.; Muller, M. K.; Kahlenberg, V.; Thomas, R.; Rhede, D.; Wirth, R.; Wunder, B. (2008). Protonation in germanium equivalents of ringwoodite, anhydrous phase B, and superhydrous phase B Note: Ge-anhydrous phase B. American Mineralogist, 93, pp. 1282-1294.